The renal papillae play a crucial role in the formation of urine and the eventual elimination of waste from the body.
The renal papilla is composed of multiple collecting ducts that converge into a single channel known as the renal papillary duct. These ducts drain urine from the nephrons, which are the functional units of the kidney responsible for filtering blood and producing urine.
There are many renal papillae within each kidney, and each papilla has multiple collecting ducts that contribute to its formation. The plural form of the renal papilla is renal papillae, which refers to all the papillae within both kidneys.
From the renal papilla, the urine flows into the renal pelvis, which is a funnel-shaped structure that collects urine from the papillae and then passes it to the ureter for elimination from the body. The renal pelvis is formed by the convergence of several major calyces, which in turn are formed by the merging of several minor calyces that surround each renal papilla.
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a large percentage of antibiotics and semisynthetic drugs are produced by members of the genus
The genus Streptomyces is known to produce a large percentage of antibiotics and semisynthetic drugs. This group of soil-dwelling bacteria has been extensively studied and has been found to produce over two-thirds of all known antibiotics.
Streptomyces species have been found to produce a wide range of antibiotics, including penicillin, streptomycin, erythromycin, and tetracycline.Streptomyces bacteria are unique in their ability to produce secondary metabolites, including antibiotics and other bioactive compounds. They have a complex life cycle, which includes the formation of spores and the production of specialized cells called aerial hyphae. These hyphae are responsible for the production of antibiotics and other bioactive compounds.Streptomyces species have been used extensively in the pharmaceutical industry, where they have been employed in the production of many of the antibiotics and other drugs that are used today. These bacteria have been found to be highly adaptable, and can produce a wide range of compounds in response to different environmental conditions.In conclusion, members of the genus Streptomyces are responsible for the production of a large percentage of antibiotics and semisynthetic drugs. Their unique ability to produce secondary metabolites has made them a valuable resource in the pharmaceutical industry, and their continued study is important for the development of new drugs to combat emerging infectious diseases.For more such question on Streptomyces
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what was the role of commissioner with the Exxon Valdez
The Exxon Valdez oil spill commissioner's duties included determining what caused the leak and supervising the cleanup process.
The commissioner's position at Exxon ValdeLarossi was instrumental in managing the spill cleanup operations in his capacity as Commissioner. Exxon and thousands of volunteers worked tirelessly to contain and remove the oil from the impacted areas during the cleanup. The reaction to the leak received harsh criticism for being delayed and inadequate as well as for the harm the oil caused to the ecosystem.
One of the biggest environmental catastrophes in US history the Exxon Valdez oil spill had a profound impact on how the oil industry was regulated and how oil spills were handled.
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Substances that can carry electrical current across cell membranes are called:________
Substances that can carry electrical current across cell membranes are called ions.
Ions are charged particles that play a critical role in various cellular processes. They can carry electrical current across cell membranes, which is important for nerve impulses, muscle contractions, and other cellular functions. Ions are classified as either cations or anions based on their charge. Cations have a positive charge and include sodium, potassium, calcium, and magnesium, while anions have a negative charge and include chloride and bicarbonate. These ions move in and out of cells through ion channels, which are proteins that selectively allow certain ions to pass through. The movement of ions across cell membranes is essential for maintaining proper cell function and is regulated by various factors, including ion concentration gradients and ion channel activity.
In biological systems, cell membranes are vital for maintaining the proper environment within cells. Ions, such as sodium (Na+), potassium (K+), calcium (Ca2+), and chloride (Cl-), are charged particles that play a crucial role in carrying electrical current across these membranes. These ions move through specialized proteins called ion channels, which selectively allow specific ions to pass through the cell membrane. This movement of ions across the membrane generates an electrical potential difference, known as the membrane potential. This process is essential for various cellular functions, including the transmission of nerve impulses, muscle contractions, and the maintenance of cell homeostasis.
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Which of the following is/are true of type I diabetes mellitus?
A) Long-term storage of glucose in liver is impaired
B) The ability of the body to retrieve glucose stored in fat is impaired.
C) Short-term storage of glucose in fat is impaired
D) Long-term storage of glucose in fat is impaired.
E) The ability of the body to retrieve glucose stored in muscle and liver is impaired.
The ability of the body to retrieve glucose stored in muscle and liver is impaired is true of type I diabetes mellitus (option E).
What is type I diabetes mellitus?The problem with Type I diabetes mellitus stems from the pancreas's inability to create insulin. This deficiency critically disrupts the cell’s absorption and retention of glucose. Lack of absorption leads to a process whereby fat gets broken down for energy procurement purposes via ketones stored up in bloodstreams.
The ability of the body to retrieve glucose stored in muscle and liver is impaired is correct of type I diabetes mellitus.
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Energy used by producers in a grassland food web is provided by
Photosynthesis is used by producers to generate energy from the sun.
What is Photosynthesis?Photosynthesis is a process that plants and other organisms utilize to transform light energy into chemical energy that can then be released to power the organism's activities via cellular respiration.
The more well-known mechanism is oxygenic photosynthesis, which creates oxygen gas as a byproduct. Anoxygenic photosynthesis does not produce oxygen and is most commonly found in bacteria.
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What function does the Bicoid protein have in fruit flies?A. It is a tumor suppressorB. It is a pigment proteinC. It promotes anterior development of the embryoD. It causes cancer
The function does the Bicoid protein have in fruit flies is: C. It promotes anterior development of the embryo.
The Bicoid protein is a transcription factor that is crucial for the embryonic development of fruit flies (Drosophila melanogaster). It is localized at the anterior (head) end of the developing fruit fly embryo and plays a critical role in establishing the anterior-posterior axis during early embryogenesis.The Bicoid protein is maternally provided, meaning it is produced by the mother and deposited in the egg during oogenesis (egg development). After fertilization, the Bicoid protein forms a concentration gradient along the anterior-posterior axis of the embryo, with the highest concentration at the anterior end.The Bicoid protein acts as a transcription factor, binding to specific target genes and regulating their expression. It helps to initiate the development of structures in the head region of the embryo, such as the head segments, brain, and anterior gut. It also helps to specify the fate of different regions of the embryo, providing positional information that guides the formation of body segments and organs during embryonic development.In summary, the Bicoid protein in fruit flies promotes anterior development of the embryo by establishing the anterior-posterior axis and regulating the expression of target genes involved in head and anterior body development. It is not a tumor suppressor, pigment protein, or a cause of cancer.
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Lev Vygotsky said that cognitive development is driven by __________. His is also known for his concept of _____________ that refers to the skills and abilities that are not fully developed but are in the process of development- usually with help of an adult.
Lev Vygotsky said that cognitive development is driven by social interactions. He is also known for his concept of the Zone of Proximal Development (ZPD), which refers to the skills and abilities that are not fully developed but are in the process of development, usually with the help of an adult.
Vygotsky believed that cognitive growth happens when children interact with others, such as parents, teachers, or peers. These interactions provide opportunities for children to learn new concepts and problem-solving strategies.
The Zone of Proximal Development represents the gap between what a child can do independently and what they can achieve with assistance.
By working with a more knowledgeable person, children can improve their skills and move closer to mastering new abilities. This collaborative learning process is essential for cognitive development.
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During which process do the morphology and function of a cell change, usually permanently, so that the cell can become specialized?
The process during which the morphology and function of a cell change, usually permanently, so that the cell can become specialized is known as cell differentiation.
This process involves the activation or suppression of specific genes, leading to the development of specialized structures and functions within the cell. Cell differentiation is a fundamental process in the development of multicellular organisms, allowing for the formation of diverse tissues and organs with specialized functions.
During cell differentiation, a less specialized cell undergoes specific changes in gene expression, which ultimately allows it to perform specific functions in the organism. This process is crucial for the development of multicellular organisms and helps create various cell types, such as muscle cells, nerve cells, and blood cells.
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which of the following is true of both parasitism and amensalism?choose one:a. one member is much larger than the other. b. both involve at least one microbial partner.c. one partner is harmed or suffers.d. the relationships are usually species specific.e. both involve intimate body-to-body contact.
Answer:d
i tried my best i was half a sleep
Explanation:
One partner is harmed or suffers is true of both parasitism and amensalism. (C)
In parasitism, the parasite benefits at the expense of the host, causing harm or suffering to the host. In amensalism, one organism is harmed or inhibited while the other is unaffected. For example, a plant may release chemicals that inhibit the growth of nearby plants, causing harm to those plants.
Both relationships can occur between different species or within the same species. The other options, such as one member being much larger or the relationships being species-specific, are not necessarily true of both parasitism and amensalism.(C)
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A carbon-hydrogen- oxygen-nitrogen molecule created from a specific triplet sequence is called
A carbon-hydrogen-oxygen-nitrogen molecule created from a specific triplet sequence is called a protein.
Proteins are made up of long chains of amino acids, which are themselves created from a specific sequence of nucleotides in DNA. The process of translating the nucleotide sequence into an amino acid sequence is known as protein synthesis, and it results in the creation of a unique and complex molecule that plays a variety of important roles in the body, including acting as enzymes, hormones, and structural components of cells and tissues. The information contained in the DNA sequence is responsible for determining the specific amino acid sequence of the protein, which in turn determines its function and properties. Overall, proteins are an essential component of life and are involved in virtually every aspect of cellular and organismal function.
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Define self-determination theory- what are the 3 factors needed
Self-determination theory is a psychological theory that focuses on the motivation behind human behavior. It posits that three basic needs must be met in order for individuals to feel motivated and satisfied: autonomy, competence, and relatedness.
Autonomy refers to the need for individuals to have control over their own lives and decisions, rather than feeling like they are being forced or coerced. This can include having choices and options, feeling like their actions are self-directed, and feeling like they are acting in accordance with their values and beliefs.
Competence refers to the need for individuals to feel capable and effective in their actions and pursuits. This can involve feeling like they are making progress toward their goals, feeling like they have the necessary skills and resources to succeed, and feeling like they are mastering new challenges.
Finally, relatedness refers to the need for individuals to feel connected to and supported by others. This can include having close relationships and social support, feeling like they are part of a community or group, and feeling like they are understood and validated by others.
Overall, self-determination theory suggests that when these three basic needs are met, individuals will experience greater motivation, satisfaction, and well-being in their lives.
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the method used to obtain one’s material needs from one’s environment is called what?
The method used to obtain one's material needs from one's environment is called "subsistence" or "subsistence strategy".
It refers to the way in which individuals or societies obtain the necessary resources, such as food, water, shelter, and clothing, from their environment to sustain their livelihood and meet their basic needs for survival. Subsistence strategies can vary widely depending on factors such as geography, climate, available resources, technology, and cultural practices.
Examples of subsistence strategies include hunting and gathering, farming, fishing, herding, and industrial production, among others. The subsistence strategy adopted by a society or individual greatly influences their way of life, social organization, and economic system.
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how does the human body expel heat if all the surrounding environment is above the body temperature?
The human body expel heat if all the surrounding environment is above the body temperature through the process of evaporation.
What is evaporation?Evaporation is described as a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. if on the surface the water evaporates.
Water evaporated f from the skin cools the body, keeping its temperature in a healthy range.
Other ways the body loses heat is through respiration, radiation, conduction, and convection.
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In humans and most animals, the master clock resides in what structure of the brain?
In humans and most animals, the master clock, also known as the central circadian pacemaker, resides in the suprachiasmatic nucleus (SCN) of the brain.
The SCN is a small group of cells located in the hypothalamus, which is a structure of the brain that plays a crucial role in regulating various bodily functions, including sleep and wakefulness.
The SCN receives input from light-sensitive cells in the retina, which helps to synchronize the body's internal clock with the external environment. Overall, the SCN plays a critical role in regulating the body's circadian rhythms, including sleep, metabolism, and hormone secretion.
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which of the following is (are) used by microorganisms to become resistant to a particular drug? group of answer choices exclusion of the drug from the cell enzymatic inactivation of the drug all of the choices are correct. blocking entry
Various mechanisms, such as the drug's enzymatic inactivation, the drug's exclusion from the cell, or the use of a different metabolic pathway that skips the drug-sensitive step, allow microorganisms to develop drug resistance. The correct answer is (D).
Microorganisms can also acquire mutations that alter the drug target site or enhance drug efflux in some instances. In general, drug resistance in microorganisms is a complicated and ever-evolving phenomenon that presents significant difficulties for public health and healthcare.
Genes that make a microbe drug-resistant can also be acquired from other microbes. Microorganisms duplicate in large numbers. These genes may be transferred to other bacteria by drug-resistant bacteria. Non-safe microscopic organisms get the new DNA and become impervious to drugs.
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Q- Which of the following is (are) used by microorganisms to become resistant to a particular drug?
A. Enzymatic inactivation of the drug
B. Exclusion of the drug from the cell
C. An alternate metabolic pathway that bypasses the drug-sensitive step
D. All of the choices are correct.
If you walked along the creek from point A to point B, what would be the total change in elevations?
Any point's elevation can be calculated by locating the closest labelled line, counting the lines above or below it, multiplying that number by the contour interval, and then adding or subtracting the result from the closest contour line.
The slope becomes steeper when the contour lines are spaced closer together. "Rise over Run," which equals the rise (change in vertical distance) divided by the run (change in horizontal distance), is an easy-to-remember formula for calculating the change in elevation as a decimal.It is 8,848 metres (29,035 feet) long. The Dead Sea, which is situated on the border between Israel and Jordan, is where the Earth's lowest point on land is.
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if one strand is 5'-gcac-3', the complementary strand must be _____
If one strand is 5'-gcac-3', the complementary strand must be 3'-cgtg-5'.
In DNA, the two strands are complementary, meaning the nucleotide sequence of one strand determines the nucleotide sequence of the other. The complementary base pairing rules state that adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C).
Therefore, given a sequence of one strand, we can easily determine the sequence of the complementary strand by pairing each nucleotide with its complementary base.
In this case, the original strand is 5'-gcac-3', so we know that the complementary strand must start with a 3'-end, and its sequence will be complementary to the original sequence, with G pairing with C and A pairing with T. Hence, 3'-cgtg-5' is the complementary strand.
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What is one reason scientists have developed a system to classify organisms?
• Classification allows for organisms to interbreed and change.
O A system was needed to better track genetic changes in an organism.
• Classification allows for better identification of new organisms.
O A system was needed to see microscopic organisms with more detail.
Answer:
C. Classification allows for better identification of new organisms.
Necesito ayuda para balancear la ecuación Al + O2➡️ Al2O3
in the S phase, the number of chromatids doubles during replication. What are the chromatids bonded by? What does this mean for the number of chromosomes present in the cell?
In the S phase of the cell cycle, DNA replication occurs and each chromosome is duplicated, resulting in the formation of two identical sister chromatids. The chromatids are bonded by a centromere, which is a specialized region of DNA that holds the chromatids together. This means that after replication, each chromosome consists of two sister chromatids that are held together at the centromere.
Since the number of chromatids doubles during replication, the number of chromosomes present in the cell remains the same. For example, if a cell had 10 chromosomes before S phase, it will still have 10 chromosomes after replication, but now each chromosome will consist of two sister chromatids.
It is important to note that the number of chromosomes must remain constant in order for the cell to divide properly during mitosis.
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What evidence supports or contradicts the hypothesis that the invasive Burmese pythons are responsible for recent increases in human Everglades virus infections, and how can this hypothesis be evaluated using the available data?
Overall, while the hypothesis that invasive Burmese pythons are responsible for recent increases in human Everglades virus infections is plausible, it requires further investigation and evidence to confirm or refute it definitively.
The hypothesis that invasive Burmese pythons are responsible for recent increases in human Everglades virus infections is based on the observation that the number of human cases of the virus has increased since the pythons have become established in the Everglades. However, this correlation does not necessarily mean that the pythons are the direct cause of the increase in infections.
To evaluate this hypothesis, several lines of evidence can be considered. One approach would be to investigate the ecology and behavior of the pythons and their interactions with the natural hosts of the Everglades virus, such as rodents and other small mammals. This could help to determine whether the pythons are likely to be vectors for the virus, or whether they might be indirectly facilitating transmission by altering the ecosystem in ways that favor the virus or its hosts.
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If a male that is colorblind has children with a female that is homozygous for normal sight, what percentage of their daughters will be carriers?
The male is colorblind, so his genotype is XcY, where Xc represents the colorblind X chromosome and Y represents the Y chromosome. The female is homozygous for normal sight, so her genotype is XX, where both X chromosomes have the normal vision gene.
If a male that is colorblind has children with a female that is homozygous for normal sight, 100% of their daughters will be carriers. Here's the step-by-step explanation:
1. The male is colorblind, so his genotype is XcY, where Xc represents the colorblind X chromosome and Y represents the Y chromosome.
2. The female is homozygous for normal sight, so her genotype is XX, where both X chromosomes have the normal vision gene.
3. When they have children, the male will pass on either the Xc or Y chromosome to their offspring, while the female will pass on one of her normal X chromosomes.
4. Daughters will receive one X chromosome from each parent, resulting in a genotype of XcX.
5. Since the daughters have one normal X chromosome and one colorblind X chromosome, they are carriers for colorblindness but will not express the condition themselves.
So, 100% of their daughters will be carriers for colorblindness.
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assemblies of aligned magnetotactic bacteria and extracted magnetosomes: what is the main factor responsible for the magnetic anisotropy?
The main factor responsible for magnetic anisotropy in assemblies of aligned magnetotactic bacteria and extracted magnetosomes is the shape anisotropy of the magnetosomes.
Magnetosomes are small, membrane made magnetic particles that are synthesized by magnetotactic bacteria. They are elongated along a specific axis, giving them a identifiable shape anisotropy. When magnetosomes are extracted from the bacteria, and assembled into chains and structures, they can exhibit magnetic properties that are highly dependent on their alignment and magnetic anisotropy in the bacteria.
The shape anisotropy of the magnetosomes plays a major role in determining their magnetic properties, including their coercivity, remanence and other things.
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how can you stop the transcription of a gene? i. mutation of rna polymerase ii. decreasing the expression of transcription factors that as activators iii. increasing the expression of transcription factors that as repressors
The transcription of a gene is stopped by decreasing the expression of transcription factors that as activators, option B.
A cell employs transcription and translation processes to create all the proteins required for bodily function based on data stored in the DNA base sequence. The four building blocks of DNA and RNA are shown in the illustration as C, A, T/U, and G. A section of DNA that codes for a particular gene gets transcribed into messenger RNA (mRNA) in the cell's nucleus during transcription.
The cytoplasm is where translation takes place after the mRNA transports the genetic data from the DNA there. The information included in the mRNA sequence is used to create proteins during translation. The mRNA binds to a ribosome, a component that can read the genetic code. Another form of RNA is present while the mRNA moves through the ribosome.
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Biodiversity sometimes involves the relocation of what
The relocation of species is sometimes involved in biodiversity.
Biodiversity refers to the variety of life on Earth, including genetic, species, and ecosystem diversity. Due to various reasons such as habitat destruction, climate change, and human activities, some species may face extinction or have their populations reduced. In order to preserve and maintain biodiversity, relocation or translocation of species may be necessary.
This involves moving individuals of a species from one location to another, in order to establish a new population or supplement an existing one. The goal is to enhance genetic diversity, increase the number of individuals, and prevent the extinction of the species.
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which is an example of an indirect pest agent? group of answer choices sooty mold yellowing of plant cosmetic damage plant disease
Among the options provided, sooty mold is an example of an indirect pest agent.
A particular kind of fungus called sooty mold develops on the honeydew secreted by insects like aphids, mealybugs, and scale insects. Despite not immediately harming the plant, the mold can cover the leaves and inhibit photosynthesis, which will ultimately result in slowed growth and lower yields.
Additionally, stomata, which are the microscopic apertures on the leaves that permit the exchange of gases, can be covered by sooty mold, which makes it harder for the plant to breathe. Therefore, even if the insects may not directly hurt the plant, their waste products might draw sooty mold and negatively impact it.
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How is the environment shaped by globalization?
Answer:
Globalization affects the environment positively and negatively. Here are a few ways in which globalization has shaped the environment:
Increased international trade: Globalization has increase international trade, expanding transportation networks, such as shipping and air transport. These modes of transportation increased greenhouse gas emissions, contributing to climate change.
Industrialization: The globalization of the economy caused the development of new industries and the expansion of existing ones. This increased industrial pollution, negatively affecting the environment. Get instant, well-researched essays and answers through proffrank01 at g m ail.con. You can be sure to get answers anytime since communication is instant.
Deforestation: The expansion of international trade increased the demand for wood products, such as paper and furniture. This escalated deforestation in worldwide, negatively affecting biodiversity and escalating climate change.
Agricultural practices: Globalization has expanded industrial agriculture, which often relies on the use of pesticides and fertilizers. These products can negatively affect the environment.
Technological advancements: Globalization has also led to the development of new technologies to mitigate environmental damage, such as renewable energy technologies and more efficient transportation systems.
Explanation:
Globalization has had a significant impact on the environment.
The increased demand for goods and services has led to increased production and consumption, which in turn has led to higher levels of pollution and resource depletion.
Globalization has also led to the intensification of industrial agriculture, which has contributed to deforestation, soil erosion, and water pollution. Moreover, globalization has facilitated the spread of invasive species and diseases, which have had devastating effects on ecosystems.
The transportation of goods and people across the world has also contributed to greenhouse gas emissions and climate change.
In conclusion, globalization has significantly shaped the environment through its impact on production and consumption patterns, industrial agriculture, the spread of invasive species and diseases, and transportation-related emissions.
It is important to address these issues and work towards more sustainable and environmentally friendly practices.
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b.
Draw a diagram of photosynthesis that includes these labels: sunlight, O₂.
water, sugar, CO₂.
need answer asapppppppp!
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigment. It takes place in the chloroplasts of the plant cells. During photosynthesis, carbon dioxide (CO2) and water (H2O) are converted into oxygen (O2) and glucose (C6H12O6) in the presence of sunlight and chlorophyll. This process can be summarized by the following equation:
6 CO2 + 6 H2O + sunlight energy → C6H12O6 + 6 O2
In this equation, sunlight, water, and carbon dioxide are the reactants, while oxygen and glucose are the products. Therefore, your labels would fit into this equation as follows:
Sunlight - provides energy for the reaction to occur.
Water - reacts with CO2 to produce O2 and glucose.
O2 - released into the atmosphere as a product of photosynthesis.
Sugar - produced as a product of photosynthesis.
CO2 - reacts with water to produce O2 and glucose.
why does an embryo not grow in size during the cleavage phase, despite the fact hat its cells are rapidly dividing?
During the cleavage phase, the embryo undergoes rapid cell division, but the size of the embryo does not increase because the cells are becoming smaller with each division. This is because the embryo is dividing into smaller and smaller cells in a process called blastomeres.
The blastomeres are dividing so rapidly that they do not have time to grow in size before dividing again. Therefore, while the embryo is rapidly dividing, it is not growing in size during the cleavage phase.
The embryo does not grow in size during the cleavage phase despite its cells rapidly dividing because cleavage is a process of rapid cell division without significant cell growth. In this phase, the embryo's cells, called blastomeres, are dividing quickly but not increasing in overall size. The purpose of cleavage is to create numerous cells that will eventually differentiate into various cell types, rather than increasing the size of the embryo. This allows the embryo to have a larger number of cells in a compact size, facilitating efficient cell-to-cell communication and differentiation later in development.
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Which cell organelle would be directly involved in
synthesizing an enzyme?
(1)Ribosome
(3) Cell Wall
(2) Chloroplast
(4) Vacuole
Answer: ribosomes
Explanation:
Ribosomes are the micro particles of ribonucleoprotein found in the cell, hence they are called RNP particles. These are the main sites of protein synthesis where synthesis of protein occurs. They are therefore called protein factory of the cell.
