Examples of element are carbon and non example of element are water and carbon dioxide
Carbon is an element comprised of atom having the same number of proton and six common example of element are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen and at present 94 are the natural element whereas 24 are the synthetic element and all atom of an element contain the same number of proton and matter containing different type of atom or no atom at all is not an element and examples are water carbon dioxide plastic and brass etc
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Which of the following DNA analysis techniques requires the most steps to complete?
STR profiling
SNP analysis
Y-STR analysis
DNA fingerprinting
The DNA analysis technique that requires the most steps to complete is DNA fingerprinting (Option D) The DNA fingerprinting takes 8 steps to complete.
What is DNA fingerprinting?DNA fingerprinting is a technique for identifying an individual from a DNA sample by examining distinctive patterns in their DNA.
The steps involved in DNA fingerprinting are as follows: The DNA is being isolated. The DNA is digested using restriction endonuclease enzymes. Electrophoresis is used to separate digested fragments based on fragment size.
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What happens during
facilitated diffusion?
A. Molecules are moved to an
unimportant area.
B. Molecules are destroyed.
C. Molecules are moved from a
higher concentration to a lower
concentration. This
Answer:
C. Molecules are moved from a higher concentration to a lower concentration.
Explanation:
Facilitated diffusion is a type of diffusion in which molecules move from a region of higher concentration to a region of lower concentration assisted by a carrier.
Almost every cell in the human body is replaced every few years through the process of _____. replication mitosis meiosis duplication
Answer:
It Mitosis, it’s a process that replace every cells in the human body every few years.
3. List the main phases of mitosis in order from start to finish. *
The main phases of mitosis in order from start to finish are as follows:
ProphasePrometaphaseMetaphaseAnaphaseTelophase.What is Mitosis?Mitosis may be defined as a type of cell division through which a parental cell is successfully divided into two daughter cells. These daughter cells are genetically identical to the parental cells and generally diploid in nature.
Prophase is the longest phase of karyokinesis. In this phase, the nuclear membrane and nucleolus disappear. In metaphase, the chromosomes are usually lined up in one plane by attaching to the spindle through the centromere.
Anaphase is the smallest phase of mitotic cell division. In this phase, the centromere splits, and chromosomes move to opposite poles. In telophase, the two sets of daughter chromosomes reached opposite poles and are converted into chromatin thread.
Therefore, the main phases of mitosis order from start to finish are well described above.
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Why is water considered a good insulator?
Answer:
Water is a good insulator
Explanation:
This is because water is very healthy for our body making us not dehydrate
Why is the Establishment of biological research institutes so important in Ethiopia
The Establishment of biological research institutes is so important in Ethiopia because realizing its immense potential to exploit biotechnology and the life sciences requires the opening of many new R&D parks.
The establishment of numerous additional R&D parks is necessary in order for biotechnology and the life sciences to reach their full potential. Only by establishing several more R&D institutions can Ethiopia utilize its potential biological and genetic diversity as well as local knowledge of biological diversity.
Ethiopia is hampered in its efforts to establish biotechnology as a tool for the development of the country's economy since it has just five research centers, despite the capacity of the universities and colleges.
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Which of the following is at the root cause for all cancers?
A.) Obesity
B.) A breakdown of the cell division process
C.) antibiotic resistance
D.) The normal cell division process
Answer:
B
Explanation:
if the cell cycle during meiosis is impaired, it will rapidly produce cells(w cell division) that cannot be controlled anddddd it'll soon become cancer
These are the events that occur during protein synthesis. They are not in the correct order. Write numbers in the blanks indicating the order in which these steps occur.
1. DNA transcribes RNA
2. The RNA is sent to the cytoplasm in the form of mRNA
3. mRNA attaches to a ribosome
4. As the mRNA moves through the ribosomes, a tRNA molecule arrives transporting the correct amino acid
5. Newly arriving amino acids are connected to the growing polypeptide by peptide bonds
6. When a stop codon is reached, the protein is released from the ribosome.
A river with large, smooth rocks on the bottom, small and medium sized sediment is moving downstream.
Which conditions resulted in the erosion of larger rocks, like the one circled in the image? Check all that apply.
low gradient, high volume
high gradient, low velocity
high gradient, high velocity
What is Erosion ?
Erosion is the geological technique wherein earthen substances are worn away and transported with the aid of using herbal forces together with wind or water. A comparable technique, weathering, breaks down or dissolves rock, however does now no longer contain movement. Erosion is the alternative of deposition, the geological technique wherein earthen substances are deposited, or constructed up, on a landform. Most erosion is accomplished with the aid of using liquid water, wind, or ice (commonly with inside the shape of a glacier). If the wind is dusty, or water or glacial ice is muddy, erosion is taking area. The brown colour suggests that bits of rock and soil are suspended with inside the fluid (air or water) and being transported from one area to another. Physical Erosion - Physical erosion describes the technique of rocks converting their bodily houses with out converting their simple chemical composition.
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In the lungs of birds, where does gas exchange occur?
A. Across thin parenchymal cells in the alveoli
B. In the alveolar sacs
C. Across a thin network of bronchioles and blood vessels
D. Inside of the air sacs
What evidence does the author provide to support the claim that genetic engineering has led to the advancement of
medical science?
OA. Genetic engineering involves processes such as genetic fusion that can be used to engineer the human gene
structure of cells, thereby creating improved or more advanced organisms.
B.
Genetic engineering alters the existing gene structure of an organism to create a new organism or to improve
certain chacteristics of the organism to improve its functioning.
OC. Genetic engineering allows for the production of genetically modified organisms (GMO), such as the first ever
type of insulin-producing bacteria that functions on a newer and improved level than the existing organism.
D. Genetic engineering allows scientists to artificially enhance genetic structure and holds the potential to cure
deadly diseases in humans that have no known cure.
The author provide evidence to support the claim that genetic engineering is Genetic engineering alters the existing gene structure of an organism to create a new organism or to improve certain characteristics of the organism.
Genetic engineering, also referred to as genetic alteration, is a process that uses technologies created in laboratories to change an organism's DNA. This could have adding new DNA, deleting a segment of DNA, or changing a single base pair (A-T or C-G).
Among other things, genetic engineering has been utilized in science and industry to create cancer therapies, brewing yeasts, and genetically modified plants and animals. As a component of GM technology, DNA is put into the genome of an organism. To produce a GM plant, new DNA is inserted into plant cells.
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Lactose intolerance can be characterized by all of the following except
A. Results from the lack of lactase
B. Can be influenced by the environment
C. Does not involve a persons ability to digest milk
D. Is a good example of bio cultural evolution
E. Has a genetic bases
Lactose intolerance can be characterized by all of the following except does not involve a persons ability to digest milk
People with lactose intolerance are unable to fully digest the sugar in milk and as result they have diarrhea and gas and bloating after eating or drinking diary product and the condition which is also called lactose malabsorption and is usually harmless but its symptoms can be uncomfortable and most people with lactose intolerance can manage the condition without having to give up all diary food
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Deforestation has removed many habitats for bats. This action has impacted
which nutrient cycle the most?
Hydrologic cycle
Sulfur cycle
Nitrogen cycle
Phosphorous cycle
Carbon cycle
Deforestation has removed many habitats for bats this action has impacted nutrient cycle the most is hydrologic cycle
Deforestation refer to the decreases in forest area across the world that are lost for others uses such as agricultural croplands, urbanization or mining activities and greatly accelerated by human activities and a nutrient cycle is a repeated pathway of particular nutrient or element from the environment through one or more organism and back to the environment and deforestation can disrupt the water cycle by decreasing precipitation which can lead to change in river flow and water volume
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If pH affects enzyme activity, then...
pH: Each enzyme has an optimum pH range. Changing the pH outside of this range will slow enzyme activity. Extreme pH values can cause enzymes to denature. Enzyme concentration: Increasing enzyme concentration will speed up the reaction, as long as there is substrate available to bind to.
Answer:
7>ph<14
Explanation:
if ph is 7 then its neutral, if ph lower than 7 and higher than 0 its acidic, if it's higher than 7 and lower than 14 its basic.
Claim:The survival trait became common in the bed bug population because their immune system got used to the chemicals causing them to mutate in order to survive.
What would be the evidence to support this.
The evidence that would support the claim the survival trait became common in the bed bug population because their immune system got used to the chemicals causing them to mutate in order to survive is the change in the allele frequency for the mutated gene variant in the population across generations.
What is a genetic mutation?A genetic mutation can be defined as any alteration in the genetic material of an organism that may be associated with a change in the phenotype when this mutation affects a gene that encodes for such trait.
A mutation may be beneficial, deleterious or neutral depending on the resulting phenotype and it may produce a positive change in the allele frequency in the case of positive germinal mutations.
Therefore, with this data, we can see that a genetic mutation may be beneficial and it may lead to a positive change in the allele frequency when it is a germinal beneficial mutation.
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What is the shape of the typical Elodea cell?
Do you think the unofficial titles of some eras (i.e., Age of Fishes, Age of Reptiles,
Age of Mammals) are informative or an oversimplification? Explain your reasoning.
with alternative unofficial titles based on what you have learned about
Come up
each era
The unofficial titles of some eras such as Age of Fishes, Age of Reptiles and Age of Mammals are really informative and they are not oversimplifications because these periods reflect the emergence of different taxonomic groups in the course of evolution.
What are animal eras?The animal eras are periods during the geological time in which certain groups of animals appeared in the course of evolution, which results informative to determine how evolution (change) occurred due to natural selection.
For example, mammals emerged as a taxonomic group during the Cenozoic Era, which occurred approximately 65 million years ago and this period is known as the Age of mammals.
Therefore, with this data, we can see that an animal era is not only an oversimplified term because it also involves the emergence of certain taxonomic groups during the evolution and can serve to contextualize geological periods in a biological framework.
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when does dna replication happen?
Answer:
In short, DNA replication happens after the cell is done growing, during the S or synthesis phase. In eukaryotic cells, this happens in the nucleus, and in prokaryotic cells, this happens in the cytoplasm.
Explanation:
There are many different proteins, such as topoisomerase, ligase, and polymerase; leave a comment if you need details.
If you wanted to find support for the idea that all living things are composed of cells, what evidence would you need
to gather?
I would compare nonliving things and living things to determine if there are similarities
I would examine many kinds of living things under a microscope and look for the presence of cells
I would conduct experiments to determine the function of cells from many different living thing to see if they
are similar
I would examine nonliving things to verify that the smallest parts are not cells
I would examine many kinds of living things under a microscope and look for the presence of cells.
Option B is correct.
What proof is there that cells make up all living things?Using an early microscope, Robert Hooke finds dead cells. In order to see living cells like bacteria, Anton von Leeuwenhoek creates a more potent microscope. All living things are composed of cells, and cells can be created from other cells, according to Matthias Schleiden and Theodor Schwann.
What kind of proof would at least partially validate the cell theory's tenets?What kind of proof would at least one of the tenets of the cell theory be supported by? There are no cells in rocks or other nonliving substances. It has been found that cells change one type of energy into another. To observe nearly all cells, a microscope is required.
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Suppose you were observing an organism through the microscope and noticed that it moved toward the bottom of the slide and then it moved to the right. What does this tell you about the actual movement is the organism?
Answer: top of the slide and to the left
Explanation:
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i need help with 4d & 4e please! it’s due tmr
Denaturation of protein is the phenomenon where all the structures of proteins are disrupted except the primary structure. This happens because the primary structure is made up of covalent bonds that cannot be broken down easily. But the secondary or tertiary structures are made of non-covalent structures that are relatively easier to disrupt.
Enzymes are the proteinaceous agents that alter the rate of reactions. The enzyme activity is active when the protein exhibits the tertiary or quaternary structure. This is the reason why when protein denatures the enzyme activity also changes.
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Identify and define the anther, stigma, style, filament, pistil, petal, stamen, ovary, sepal, and ovule
A: Ovule: Ovule is that part of the plant which forms the seed of flowering plant when fertilized.
B: Ovary: The ductless reproductive gland is known as the ovary. It houses a large number of ovules. It is the part of plant where seed formation takes place.
C: Style: The stalk that joins the stigma and the ovary is long and slender, like a tube called style.
D: Stigma: The receptive tip at the top of each carpel in the gynoecium of a flower.
E: Pistil: The female reproductive organ of a flower, the pistil is located inside and is made up of three parts: the stigma, style, and ovary. The term "pistil" refers to all of this.
F: Anther: It is a yellow, sac-like structure. The pollen is placed and stored in the anther.
G: Stamen: Also referred to as an androecium, this is the male reproductive component. It is made up of : filaments and anthers.
H: Filament: It is a thin, threadlike structure that supports the anther.
I: Sepal: The green portion that lies under the petals and shields developing buds is known as a sepal.
J: Petal: Petals are a modified version of leaves that are brightly colored to attract insects for pollination. Petals also protect the flower's reproductive parts.
What are the different components of a flower?
The Vegetative components of flower are: Petals and Sepals.The Reproductive components of flower are:Stamen, Anther, Filament, Pistil, Stigma, Style, Ovary.
How does flowers reproduce?
Flowers are a plant's reproductive organs that participate in sexual reproduction. It contains the female reproductive organ known as a gynoecium and the male reproductive organ known as an androecium. Through pollination, the androecium's pollen grains are delivered to the gynoecium's stigma. The male gametes are transferred from the pollen grain to the female gamete that is already present in the ovary through the pollen tube as it grows and develops. The zygote is created when the male and female gametes combine. The ovules become seeds, and the ovary becomes fruit. When these seeds are spread in the soil, they germinate and produce new plants.
Therefore, A, B, C, D, E, F, G, H, I and J are Ovule, Ovary, Style, Stigma, Pistil, Anther, Stamen, Filament, Sepal and Petal, respectively.
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Define the word scavenger.
Explanation:
1. an animal that feeds on carrion, dead plant material, or refuse.
2. a person who searches for and collects discarded items.
Do the tissues lining the gastrovascular cavity in Cnidarians differ at any point in the cavity?
All cnidarians have two tissue layers. The outer layer is called the epidermis, whereas the inner layer is called the gastrodermis and lines the digestive cavity. Between these two layers is a non-living, jelly-like mesoglea
Cnidarias have an internal sac for digestion which is called the gastrovascular cavity. The gastrovascular cavity has only one opening, a mouth, through which the animal takes in food and releases waste. Tentacles radiate outward from the rim of the mouth.
The body wall of a cnidarian consists of three layers, an outer layer known as the epidermis, a middle layer called the mesoglea, and an inner layer referred to as the gastrodermis. The epidermis contains a collection of different types of cells. These include epitheliomuscular cells which contract and enable movement, interstitial cells that give rise to many other cell types such as egg and sperm, cnidocytes which are specialized cells unique to cnidarians which in some cnidarians contain stinging structures, mucus-secreting cells which glandular cells that secrete mucus, and receptor and nerve cells which collect and transmit sensory information.
The inner layer, the endoderm , has cells that produce digestive enzymes and break up food particles. The jellylike material between the two layers is called the mesoglea. All of these body layers surround a central cavity called the gastrovascular cavity, which extends into the hollow tentacles.
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How are global winds and global ocean currents related
please help to fill in
In each ecosystem, there are many feeding relationships. A food chain represents a flow of energy through an ecosystem, and always begins with an organism called a producer, which is able to trap light energy and convert it to chemical energy. An organism of this type is eaten by a herbivore, which is a kind of consumer that feeds only on plant material. This type of organism is, in turn, eaten by a carnivore (an organism that consumes other animals).
As a result of an action potential, AcH is released from the axon terminal and attaches to receptors on the motor end plate. Sodium rushes in the T-tubules and all the steps occur until the muscle contracts in the leg and carry out the command transported by the motor neuron. Which gray horn is the cell body of the motor neuron located? Infer and explain if this is a positive or negative feedback
1) The cell body of the motor neuron is located in the ventral or anterior horn of the grey matter. From there, it extends to the motor unit. 2) Contraction refers to negative feedback in which the body reacts when facing a stimulus.
What is the anatomy of the spinal cord?The spinal cord is mainly composed of grey matter and white matter. The second one covers the first one.
The grey matter transversal section is composed of posterior, lateral, and anterior horns, also known as dorsal, lateral, and ventral horns, respectively.
Each type of horn contains a type of neuron.
In the posterior/dorsal horns, we can find sensory neurons that provide sensory information.In the thoracic area, we can find lateral horns with visceral motor neurons.
In the anterior/ventral horns, we can find motor neurons that extend to the skeletal muscle, which is the motor unit, to produce movement.
The motor neuron from the exposed example is located in the anterior or ventral gray horn.
This example refers to negative feedback because the neurotransmitter release causes a cascade effect that ends in muscle contraction, tending to suppress or counter the original stimuli.
Any change that might occur in the internal functioning will be countered by negative feedback to maintain homeostasis.
Negative feedback needs receptors, central control, and effectors.
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Which of the following questions is most relevant to understanding the Calvin cycle?
(A) How does chlorophyll capture light?
(B) How is ATP used in the formation of carbohydrates?
(C) How is NADP+ reduced to NADPH?
(D) How is ATP produced in chemiosmosis?
How is ATP used in the formation of carbohydrates? is the most relevant question to understanding the Calvin cycle.
The Calvin cycle is a procedure that vegetation and algae use to show carbon dioxide from the air into sugar, the meals autotrophs want to grow. Every dwelling aspect on Earth relies upon at the Calvin cycle. Plants rely upon the Calvin cycle for strength and meals.
So to discover whether or not the calvin cycle is taking place, you need to see whether or not sugar or glucose is being synthesized or being created, so you are searching out is glucose being prete.
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Describe two ways that reproduction is different between mosses and conifers. Discuss the process and the product.
Examples of isotope and non-examples of isotope.
Example: The three hydrogen isotopes are protium, deuterium, and tritium.
The isotopes of carbon, nitrogen, and oxygen are not examples.
What distinguishes isotopes?An isotope can be recognized by its mass, which is made up of all of its protons and neutrons. There are two ways to express isotopes. They both use the equation mass = (number of protons) + (number of neutrons).
Why are isotopes employed?There are several uses for radioactive isotopes. In medicine, cobalt-60 is frequently used as a radiation source, for example, to stop the growth of cancer. Radioactive isotopes are utilized as tracers for both metabolic process research and diagnostic purposes.
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