Answer: The answer is B.
Explanation:because growth and passing on of genetic information is super helpful for the embryo.
D.
Mitosis is responsible for replacing cells, the growth of our bodies and carries the genetic information of the parent.
Beadle and Tatum’s BEST contribution to how gene expression is understood can be summarized as what?A. One gene produces one protein.B. Independent assortment occurs.C. DNA is the genetic molecule.D. Information flows from DNA to RNA to protein.
Answer:
D. Information flows from DNA to RNA to protein.
One gene produces one protein is the best contribution to how gene expression is understood.
George Beadle and Edward Tatum's work demonstrated that genes are responsible for producing the enzymes that control metabolic processes. The theory that each gene directly generates a single enzyme, which in turn impacts a single step in a metabolic pathway, is known as the "one gene, one enzyme" hypothesis. It was first put forth by George Wells Beadle in the US in 1941.
What is gene?
The term "gene" has a variety of meanings in biology. The molecular gene is a sequence of nucleotides in DNA that is transcribed to form a functional RNA, whereas the Mendelian gene is the fundamental unit of inheritance.
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you have joined a lab that studies the metabolic pathway shown below. just recently, an inhibitor for one of the enzymes, enzyme 3, has become available and the head of the lab wants you to use this inhibitor to determine whether the pathway is linear (as shown) or circular, with another enzyme (not shown) converting f back to a. you have access to all the molecules. what result suggests that the pathway may be circular rather than linear?
You have joined a lab that studies the metabolic pathway shown below. just recently, an inhibitor for one of the enzymes, enzyme 3, has become available and the head of the lab wants you to use this inhibitor to determine whether the pathway is linear (as shown) or circular, with another enzyme (not shown) converting f back to a. You have access to all the molecules. The result suggests that the pathway may be circular rather than linear is inhibition of enzyme 3 and addition of extra metabolite D causes accumulation of C.
Inhibitor is a chemical substance that can inhibit or slow down a chemical reaction. The way inhibitors work to slow down a chemical reaction is by binding to the active side of the enzyme so that it inhibits the bond between the enzyme and the substrate.
Metabolic pathways are a series of chemical reactions that convert one or more reagents into the final products needed by the cell. Enzymes can play a role in metabolic pathways by catalyzing the sequence of reactions into end products. By adding an inhibitor to the reaction it will inactivate enzyme 3 thereby slowing down the reaction. The pathways in circular metabolism because the addition of metabolites causes a buildup so as to form a circle.
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how is polygenic inheritance defined?
“Polygenic inheritance is delimited as quantitative legacy, place diversified independent genes have a supplement or identical effect on a single determinable trait.”
Polygenic inheritance is also known as a diversified deoxyribonucleic acid legacy or multiple determinant legacies. Polygenic inheritance characterizes the legacy of traits that are determined by the as well individual genes. These genes, called polygenes, produce particular characteristics when they are expressed together. Polygenic inheritance varies from Mendelian legacy patterns, where characteristics are contingent upon a distinct gene.
Usually, traits are polygenic when skilled is a wide alternative in the characteristic. For example, people can be of many various sizes. Height is a polygenic characteristic, conditional to at least three genes accompanying six alleles. If you are the main for all of the alleles for height, therefore you will be very lengthy.
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item 19 when testing tonicity in elodea cells, once elodea cells were placed in distilled water, what did you observe? select all that apply.
When testing for tonicity in Elodea cells, once Elodea cells were placed in the distilled water, it was observed that cell membranes were pressed tightly against the cell walls and there was a presence of full central vacuoles.
Elodea leaf cell basically is an example of a typical plant cell. It contains a nucleus, and also a stiff cell wall which gives the cell its box-like shape. The numerous amount of green chloroplasts allow the cell to produce its own food by the process of photosynthesis. The central vacuole happens to take up most of the volume of the cell.
While testing for tonicity in the Elodea cells, the Elodea cells were placed in the distilled water. It was then observed that cell membranes were pressed tightly against the cell walls and there was a presence of full central vacuoles.
Hence, the correct options are options B and C.
--The given question is incomplete, the complete question is,
"When testing tonicity in elodea cells, once elodea cells were placed in distilled water, what did you observe?
A. The cell shrunk completely
B. Central vacuoles were full
C. Cell membranes were pressed tightly against the wall"
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Briefly explain, in general terms, how of the protein components in root cells come to be different from the proteins found in leaf cells.
To up take mineral ions and water molecules from the soil, root hair cells have special protein carriers located in their outer membrane. These cells primarily perform the absorption function.
What are the functions of proteins?Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.
Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.
Proteins serve many functions in cells. They act as enzymes that catalyze chemical reactions, provide structural support, regulate the passage of substances across the cell membrane, protect against disease, and coordinate cell signaling pathways.
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Assign each figure to one of these laws, then explain the difference between the figures
In order for a figure to have reflectional symmetry, there needs to be at least one axis such that when the the figure "folds" over that axis it maps into itself.
What is reflectional figure?In order for it to have reflectional figure, the figure, after a rotation of less than 360°, must map into itself. In this case, we'll focus on the rotational symmetry, since it's not difficult to find an axis over which each figure has reflective symmetry.
The only way the first and third figures will map into themselves is after a full 360° spin, so they do not have rotational symmetry. The fourth figure is an isoceles triangle.
Therefore, In order for a figure to have reflectional symmetry, there needs to be at least one axis such that when the the figure "folds" over that axis it maps into itself.
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how can WALL-E be related to our society today? what can we do to help mitigate this problem/issue?
Promote debates and increase public awareness of crucial biological issues like pollution and garbage disposal.
What is WALL-E?The fact that WALL-E is a work of fiction, the film's themes, such as environmentalism and sustainability, have been utilised to promote debates and increase public awareness of crucial biological issues like pollution and garbage disposal.
In WALL-E, a society that has lived past its means is portrayed, leaving behind a dirty and dismal planet. This is a reflection of the current environmental disaster that has been brought on by overconsumption and a disdain for the environment. People can adopt sustainable lives by cutting back on waste, conserving resources, and making eco-friendly decisions to help minimise this problem. Governments can put rules into place to control business and support green technologies. Our earth may be preserved for future generations through group initiatives like recycling programmes and support for renewable energy.
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red-green color blindness is a sex-linked recessive trait on the x chromosome. a woman who is colorblind marries a man with normal vision. what is the probability that they would have a child with normal vision?
Red-green partial blindness is a sex-connected passive characteristic in people. It is brought about by a hereditary transformation on the X chromosome. It is a passive character.
A passive allele on the X chromosome is liable for red-green visual impairment in people. A lady with an ordinary vision whose father is visually challenged weds a partially blind male.
The little girl can have a red-green visual impairment in the event that she got two duplicates of Xc chromosomes. Since her dad just has one X chromosome, his genotype should be XcY. The other X chromosome needed to come from her mom.
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17. Create a Punnett square to solve the following codominance problem: In camellia flowers, petal color is controlled
by codominance. When a red (RR) is crossed with a white flower (WW), all the offspring are covered in both red and
white petals. If you cross a red flower with a red-and-white flower what is the probability of getting the following:
Represent answers as a fraction.
Red flowers:
White flowers:
Red-and-White flowers:
Answer:
A Punnett square is a grid used to predict the possible outcomes of a genetic cross. To create a Punnett square for the problem you described, we can use the following format:
R R
W RW RW
W RW RW
The letters in each box represent the genotype (the genetic makeup) of the offspring. In this case, the parents are a red flower (RR) and a red-and-white flower (RW).
The probability of getting a red flower: 1/2 or 0.5
The probability of getting a white flower: 0
The probability of getting a red-and-white flower: 1/2 or 0.5
It's important to keep in mind that this is a theoretical probability, as with any natural reproduction, there could be variations in the final outcome.
what causes filtrate to flow from the blood into the glomerulus
The filtrate flows from the blood into the glomerulus due to pressure difference.
The glomerulus is a tuft of tiny blood vessels in the kidney where blood is filtered. Blood pressure in the glomerulus is higher than in the Bowman's capsule, which is the structure surrounding the glomerulus.
This pressure difference forces the water and small solutes from the blood into the Bowman's capsule, creating a filtrate that will eventually become urine.
The filtration of blood into the Bowman's capsule is called glomerular filtration, and it is an essential step in the formation of urine. Blood pressure in the glomerulus is regulated by the renal system, which helps to maintain a balance between the filtration and reabsorption of water and solutes in the kidney.
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1. Which theory did Darwin use to explain evolution?
the theory of acquired characteristics
the theory of adaptive evolution
the theory of natural selection
the theory of mutated genes
why it is necessary to perform an inoculation procedure in the isolation of microorganisms from a culture sample?
Inoculation is required to isolate microorganisms since this procedure produces isolated colonies of an organism on an agar plate, which aids in the study of that organism's colony morphology.
Inoculation is the act of introducing a disease, bacterium, or virus into a human or other creature. In addition, the word "inoculation" is used more broadly to refer to the purposeful depositing of germs into any growth media, such as a Petri dish used to culture the microbe, or into food components used to make cultured foods such as yoghurt and fermented drinks such as beer and wine.
Inoculation has been used to eliminate smallpox and significantly lower the prevalence of other infectious illnesses such as polio. Inoculation is the act of implanting a pathogen or microbe into a human or other recipient; vaccination is the act of implanting or administering a vaccine; and immunization is the development of disease resistance as a result of the immune system's reaction to a vaccine or natural infection.
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4. Which scientist came up with the most accurate theory of evolution?
Charles Darwin
Jean-Baptiste Lamarck
Alexander Graham Bell
Alfred Russel Wallace
Answer:
. Which scientist came up with the most accurate theory of evolution? your answer....(Charles Darwin)
a monohybrid cross is select one: a. a breeding experiment in which the parental varieties have only one prominent trait. b. a breeding experiment in which the parental varieties have only one trait in common. c. a breeding experiment in which the parental varieties differ in only one character. d. the second generation of a self-fertilized plant.
c. a breeding experiment in which the parental varieties differ in only one character. A monohybrid cross is a cross between two P generation (parental generation) organisms that are different in only one specific characteristic.
Organisms from the P generation have the specified characteristic in homozygous form. But for that specific feature, each parent has a unique allele. Geneticists utilise monohybrid crosses to study how homozygous individuals express the heterozygous genes that they inherited from their parents. The dominant genotype is typically determined by this mixture. In a monohybrid cross, both parents have heterozygosity (or are hybrids) for the same (mono) trait. Pea plants' petals may have the characteristic.
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12. how does a eukaryotic cell distinguish the end of a broken chromosome from the end of an intact linear chromosome?
A eukaryotic cell is able to distinguish between the end of an intact linear chromosome and the end of a broken chromosome due to the presence of specific proteins.
Telomerase is able to recognize the telomeres at the ends of the intact chromosome, while ligation enzymes are able to recognize the sticky ends of a broken chromosome. The ability of the cell to distinguish between the two types of chromosome ends is essential for the maintenance of genomic stability and the prevention of genetic disorders.
Eukaryotic cells, as opposed to prokaryotic cells, are characterized by the presence of a membrane-bound nucleus and other organelles within the cell. This cellular structure is associated with a complex genome, which is composed of multiple linear chromosomes. In order for a eukaryotic cell to function properly, it must be able to distinguish between the ends of the chromosomes which are still intact from the ends of the broken chromosomes. The ability to identify these two types of chromosome ends is important for the maintenance of genomic stability and the prevention of genetic disorders.
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through his experiments with breeding pea plants, gregor mendel was able to determine how dominant and recessive genes are inherited over a series of generations. this is an example of
Gregor Mendel was able to determine how dominant and recessive genes are inherited over a series of generations, that is an example of transmission genetics.
Transmission genetics is the study of the transmission of genetic information from one generation to the next.
Mendel developed three principles of inheritance that described the transmission of genetic traits by experimenting with pea plant breeding long before anyone knew what genes were. Mendel's discovery greatly expanded our understanding of genetic inheritance and sparked the development of new experimental techniques.
When Mendel cross-pollinated one purebred plant with another, the offspring resembled either of the parent plants, not a mix of the two. Mendel, for example, did not get semi-wrinkly seeds when he crossed wrinkled seeds with smooth seeds. Instead, this cross produced only smooth seeds. In general, if the offspring of purebred plant crosses resembled only one of the parents in terms of a specific trait, Mendel designated the expressed parental trait as the dominant trait.
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In the nucleus, dna is complexed with proteins to form a fine filamentous material called?
In the nucleus, dna is complexed with proteins to form a fine filamentous material called chromatin
DNA is a polynucleotide compound that carries the hereditary characteristics that are unique to the chromosomes. The DNA molecule contains all the genetic instructions needed by all organisms throughout their life cycle. DNA found in the nucleus (nucleoplasm), also present in mitochondria and chloroplasts.
Chromatin is a fine thread found in the cell nucleus consisting of complexes of histone and non-histone chromosomal proteins with eukaryotic cell DNA. Chromatin functions to carry and store parental genes that will be passed on to offspring. Besides that chromatiin also functions to regulate cell metabolism, protein synthesis, and strengthen DNA for mitosis and meiosis.
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what variable would be most useful in making long-term road and infrastructure plans?
Population growth rate and projections would be most useful in making long-term road and infrastructure plans.
What is population growth?When making long-term road and infrastructure plans, a crucial variable to consider is population growth and demographics. Understanding how the population is growing and changing over time can provide insight into future demands for transportation and other infrastructure. For example, if a region is experiencing rapid population growth, it is likely that there will be increased demand for new roads, bridges, and public transportation systems.
Understanding the age structure of the population is also important, as this can influence the type of infrastructure that is needed. For example, an aging population may require more accessible transportation options, such as public transportation and pedestrian walkways. Other important variables to consider when making road and infrastructure plans include economic development, land use patterns, and environmental sustainability.
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what's a colour for clear water?
How was disproving spontaneous generation associated with developing principles important to microbiology? Pasteur's experiments with swan-necked flasks supported the concept that microbes in the air were responsible for contaminating nonliving matter. Needham disproved spontaneous generation through his experiments, in which boiled flasks of broth, when covered, became cloudy, teeming with microorganisms after a few days. Spallanzani disproved spontaneous generation through his experiment, in which flasks of meat broth were boiled and then melted shut, preventing the passage of air altogether. Proving spontaneous generation confirmed the existence of microbes.
Pasteur's experiments with swan-necked flasks supported the concept that all the microbes in the air were responsible for the contaminating non-living matter is disproving spontaneous generation so the correct option is A.
This exploration was important to microbiology because it helped to establish the principle of biogenesis, which states that all living effects come from other living effects. This principle is the base for the ultramodern understanding of microbial growth and development.
These findings also handed a base for the study of contagious conditions and the development of treatments and forestallment styles. Incipiently, disconfirming robotic generation was important to microbiology because it helped to establish the origin proposition of complaint, which states that certain conditions are caused by the presence of specific microorganisms.
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glucose transportation into the cells through cell membranes takes place in which order? 1. 2. 3. 4. attachment of insulin to cell receptors
Glucose transportation generates the fuel which is required for energy metabolism in the cell. Its transport into the cell membrane is a step wise procedure.
The active transport of glucose across cell membranes can be carried out by a particular carrier or by a concentration gradient-dependent facilitated transport.
The steps involved are:
Secretion of pro insulin by beta cellsStorage of pro insulin in pancreasTransformation of proinsulin to active formAttachment of insulin to receptorsInsulin release is done in response to elevated calcium concentration in beta cells.
So the answer/sequence is 2→3→4→1.
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The correct question is:
Glucose transportation into the cells through cell membrane takes place in which order?
1. Attachment of insulin to receptors
2. Secretion of proinsulin by beta cells
3. Storage of proinsulin in the pancreas
4. transformation of proinsulin into active insulin
which condition explains the genetic basis for cancer development? group of answer choices decreased immune function exposure to ionizing radiation infection by oncogenic bacteria loss of or defect in tumor suppressor genes
Loss of or defect in tumor suppressor genes explains the genetic basis for cancer development
The genetic basis for cancer development is largely explained by loss of or defects in tumor suppressor genes. These genes play an important role in regulating cell division and preventing the formation of tumors. When they are lost or mutated, they can lead to uncontrolled cell division, which can eventually form a cancerous tumor. Loss of tumor suppressor genes can be inherited, but they can also occur due to mutations acquired over time. These mutations can be caused by exposure to environmental factors such as ionizing radiation or certain chemicals, or due to errors that occur during DNA replication. The presence of oncogenic bacteria can also increase the risk of cancer, but the primary explanation for the genetic basis of cancer development is loss of or defects in tumor suppressor genes.
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which of the following does not characterize proteins? which of the following does not characterize proteins? they appear to be the molecular carriers of coded hereditary information. they have both functional and structural roles in the body. they may be denatured or coagulated by heat or acidity. their function depends on their three-dimensional shape.
Answer:
DNA
Explanation:
The statement that does not characterize proteins is: they appear to be the molecular carriers of coded hereditary information. Therefore option A is correct.
While proteins play various essential roles in the body, including structural and functional roles, they are not the primary carriers of coded hereditary information.
Instead, DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are the molecules responsible for carrying and transmitting genetic information.
Proteins are involved in the expression and execution of genetic information, but they do not serve as carriers of the genetic code.
Proteins are highly diverse molecules made up of amino acids, and their function depends on their specific three-dimensional shape, which can be influenced by factors such as heat or acidity, leading to denaturation or coagulation.
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what happens when oxygenated and deoxygenated blood mix in the heart
Answer:
In such a situation both lungs and tissues would receive blood with the same amounts of oxygen, which would affect the efficiency of the delivery of O2 to the tissues of the body. Generally, it occurs when there's a ventricular septal defect (a hole between the two ventricles), that causes the poorly oxygenated and well oxygenated blood to mix resulting into semi oxygenated blood.
It results in blood circulating in the arteries to be less oxygenated than it should due to which activity of the animal would be decreased.
the autonomic and somatic nervous systems are two separate systems that work totally independent of each other and lack any functional overlap. the autonomic and somatic nervous systems are two separate systems that work totally independent of each other and lack any functional overlap. true false
The autonomic and somatic nervous systems are two separate systems that work totally independent of each other and lack any functional overlap. False. Both are included in the peripheral nervous system.
The peripheral nervous system is all the nerves that are outside the brain and spinal cord. The function of the peripheral nerves is to connect the responses of the central nervous system to your organs and other parts of your body. The peripheral nervous system consists of the autonomic nervous system and the somatic nervous system.
The autonomic nervous system is the part of the peripheral nervous system that regulates the visceral functions of the body without us being aware of it. For example blood flow, heart rate, digestive process, and breathing process. While the somatic nervous system is part of the peripheral nerves that function to carry information on the sensory and motor nerves, to and from the central nervous system. Th3 functions to control all the things that you are aware of and consciously influence the body's response, such as moving the arms, legs, and other body parts. Thus, the autonomic and somatic nervous systems constitute the peripheral nervous system
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The statement that says "The autonomic and somatic nervous systems are two separate systems that work totally independent of each other and lack any functional overlap" is a FALSE statement since both of these systems do have functional overlap.
Both autonomic and somatic nervous systems make the peripheral nervous system. They are all the nerves that are outside the brain and spinal cord, with the primary function of connecting the responses of the central nervous system to the parts of the body.
Since both of these systems work together for that function, it can be said that they have a functional overlap. Therefore, the statement in the question above is a FALSE statement.
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Delect the correct answer from each drop-down menu.
What kind of species can harm an ecosystem or human health when introduced into the new environment?
Aspecies whose introduction does or is likely to cause economic or environmental harm or harm to human health is afn)
to the new environment.
An invasive species is any living item that harms an ecosystem and is not a part of it naturally. This includes bacteria, fungi, fish, plants, insects, amphibians, seeds, and even the young of an organism.
Which definition of environment is the most accurate?The effects of all creatures, living and inanimate, that have an impact on human life can be summed up as the environment. Water, land, sunshine, rocks, and other abiotic (non-living) components are examples.
Is the environment comprised of nature?The natural environment, also known as the natural world, is composed of all living and non-living things that emerge spontaneously, or in this case, without the aid of artificial means. Most often, Earth or particular areas of it are mentioned while using the phrase.
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why is the change in sensitivity of female midshipman fish to the 'songs' produced by males of their species a proximate example of stimulus filtering?
Answer:
The change in sensitivity of female midshipman fish to the 'songs' produced by males of their species is a proximate example of stimulus filtering because it involves a physiological change in the female fish's auditory system that results in a selective response to certain sounds produced by the males.
Stimulus filtering refers to the process by which an organism's sensory system selectively responds to certain stimuli, while disregarding others. This can occur at different levels, including the level of the sensory receptors, the processing of sensory information in the brain, or the behavior of the organism.
In the case of the female midshipman fish, their sensitivity to the 'songs' produced by males of their species changes depending on their reproductive state. This change in sensitivity is a result of the females' auditory system becoming more sensitive to specific frequencies of the males' songs, while becoming less sensitive to others. This allows the females to selectively respond to only the most desirable males and disregard others.
Thus, the change in sensitivity of the female midshipman fish to the 'songs' produced by males of their species is a proximate example of stimulus filtering, as it involves a physiological change in the auditory system of the female fish that allows them to selectively respond to certain sounds.
all parts of the sensory system use ____
A) cone cells
B) hair
C) receptors
D) chemoreceptors
Neurons that are part of the sensory system gather sensory data from their surroundings and transmit it to the brain as electrical signals for processing. Neurons called sensory receptors are involved in the transmission of messages from the body to the brain.
What do all parts of the sensory system use?The sensory system is a collection of related systems that help you notice and comprehend your environment. We just briefly covered the auditory and the visual systems, but there are other other senses like smell, taste, balance, proprioception (or your body's location), and at least half a dozen different kinds of touch sensations.The sensory systems have already been presented to you as separate, functional units—the eyes do this; the ears do that—as I was writing this. That kind of information has probably already been presented to you. A comprehensive analysis of the similarities between these systems has not been provided to you. Let's examine the systems as a whole and perhaps make some changes.To Learn more About sensory system Refer To:
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bronfenbrenner emphasized on: an ecological-systems approach. qualitative analysis. dynamic-systems theory. the use of cross-sectional data.
Bronfenbrenner emphasized: an ecological systems approach.In this case, option A is correct
According to the ecological systems theory of Bronfenbrenner, a child's development is viewed as a complex system of relationships that are influenced by a variety of levels of the environment, ranging from the immediate settings of family and school to more general cultural values, laws, and customs.
Therefore, in order to study a child's development, it is important to consider not only the child and her immediate environment but also how they or interact with the larger environment.
Five different systems—the microsystem, the mesosystem, the exosystem, the macrosystem, and the chronosystem—were used by Bronfenbrenner to categorize an individual's environment.
The ecological systems theory's microsystem level has the most bearing. This includes the child's family and school, which are his or her closest environmental surroundings.
The ecological systems theory of Bronfenbrenner has effects on instructional strategies.
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which of the following is true of osmosis? which of the following is true of osmosis? osmosis only takes place in red blood cells osmosis is an active form of transport in osmosis, water moves across a membrane from areas of lower solute concentration to areas of higher solute concentrations. in osmosis, solutes move across membranes from areas of lower water concentration to areas of higher water concentration.
The correct answer is: In osmosis, water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration
Osmosis is a phenomena by which water moves through a semipermeable membrane following a concentration gradient. It means that water moves from regions with lower solute concentration to sites of higher solute concentrations.
For example, when an individual cell is subjected to a hypertonic solution (a solution with high solute content), water inside the cell tends to get out. This kind of process is spontaneous, it means it does not require energy supply.
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