In order to support the hypothesis that mutations occur in response to an environmental challenge, the experiment in question would have to show an increase in mutation rates shortly after the environmental challenge was introduced.
When we test a hypothesis, we perform an experiment and gather data over the course of the testing. In order to obtain evidence that supports a hypothesis, we have to ensure that only one variable is changing and be sure to repeat the experiment to confirm the values measured.
Taking this into account, a hypothetical result of the fluctuation test that would support the hypothesis of mutations in reaction to environmental challenges would be to measure a spike in mutation rates in the generation following an environmental challenge, and then continue to do so with future post-challenge generations.
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describe the features of the endocrine system for control in the example given.
- endocrine gland
-negative feedback mechanism
-produce hormone -> travel via blood-> target specific cells organs
Please expand these bullet points
Answer:
The endocrine system is a major system in the body composed of glands that secrete hormones, which are substances produced by the body to stimulate an organ or group of cells. The endocrine system controls essential bodily functions, which include movement, sexual development, sensory perception, and even growth.
Explanation:
Hormones are chemicals that are produced by the glands in the endocrine system and coordinate distinct bodily functions by carrying important messages throughout the body. They send signals to receiver cells in organs, muscles, and tissues.
Role of Hormones
Hormones have very essential roles in the body, as they regulate metabolism, growth, and sex development. For example, testosterone and estrogen are sex hormones that are released in the body to initiate sex development during puberty. The rate at which these hormones are produced and released must also be highly controlled for optimal development and growth. Hormones also control levels of hunger or exhaustion. Overall, they are very important in telling the body what to do and how to do it.
Function of Hormones
As previously mentioned, hormones serve several important functions throughout the body. They are responsible for the function of organs, in addition to controlling how the body stores and uses energy. Hormones only target specific organs or cells: for example, thyroid-stimulating hormones are released by the pituitary gland, and only target the thyroid gland. Some hormones can affect several kinds of tissues at once; for instance, the thyroid hormone, produced by the thyroid gland, can affect several bodily functions, such as heart rate and metabolism.
What is gel electrophoresis used for? Select all that apply.
O A) It is used to sort DNA strands.
B) It is used to produce more DNA strands.
C) It is used to measure DNA strands.
D) It is used to break down DNA molecules.
Answer:
used to separate mixtures of DNA, RNA, or proteins according to molecular size
Gel electrophoresis is used for the separation of genetic material present in the cell such as DNA, RNA and even proteins. Thus, the correct option is A.
What is Gel electrophoresis?Gel electrophoresis is a technique which is used to separate the genetic material such as DNA fragments, RNA and proteins on the basis of their size and charge. Gel Electrophoresis involves running an electric current through a gel containing the molecules of interest in it.
The principle of Gel electrophoresis is that the DNA or protein sample to be separated is loaded on to a porous gel placed in an ionic buffer. On the application of electric charge, each of the molecules having different size and charge will move through the gel at different speeds and therefore separates out.
Therefore, the correct option is A.
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why don't we have the same means of livelihood in the different provinces and regions of the country?
I don't know........,...........................................
Answer:
there are differenties on the place and people we grew up with
A.flowering plant located in one part of the garden is producing showy purple flowers. A plant in the same species in a different part
of the garden has bright pink flowers. When the pollen from one of these plants is transferred to the ovule of the other plant, seeds
and then offspring are generated. When these seeds are planted in a different place in the garden, the resulting plants are allowed to
flower, and data are gathered. Which statements predict the appropriate outcomes based on the inheritance patterns? Select ALL that
apply
A)
All offspring would be magenta in a codominance inheritance pattern
B)
All offspring would be magenta an incomplete dominance inheritance
pattern
All offspring would be magenta if the pH of the soil is intermediate to the
other two locations.
C)
D)
Half of the offspring would be magenta and half would be pink in a
codominance inheritance pattern
All offspring would be purple if this is dominant to pink according to a
simple Mendelian inheritance pattern
E)
Answer:
its B,C,andE
Explanation:
i just did the usa testprep
The appropriate outcomes based on the inheritance patterns is all the offspring would be magenta on incomplete dominance inheritance pattern, they are magenta is the pH of the soil is intermediate to the other two locations. Thus, the correct options are B, C, and E.
What is Inheritance pattern?
Inheritance pattern describes how the genetic variants are distributed in the families. These help in understanding the patterns which is crucial to predicting disease risk in the family members of an affected individual.
According to the data given, all the offspring would be magenta in an incomplete dominance pattern, offspring would be magenta if the pH of the soil is intermediate to the other two locations, and all the offspring would be purple if this is dominant to pink according to a simple Mendelian inheritance pattern.
Therefore, the correct options are B, C, and E.
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Mosses that reproduce with gametes are , and those that reproduce with spores are .
At first, things that are reproduce with spores called sporulation. It means it is reproduction type. plants like bacteria, mucor etc reproduce by spores
PLEASE HURRY IM ON A TIMER
What causes the differences in physical characteristics like hair color among people?
A. different versions of genes
B. variations in DNA length
C. different numbers of chromosomes
D. variations in cell nucleus size
Answer:
i think B
Explanation:
:)))))
Plants use these ______ as food for growth, maintenance, reproduction
Answer:
Explanation:
Fertilizers
How can antiviral medications help someone who has the flu?
- helps the person sleep better so that they heal
- prevents the person from ever getting the flu
- makes the person feel better faster and makes the symptoms milder
- cures the person immediately (I know its not this one)
Answer:
Prevents the person from ever getting the flu. (better said as 'prevents attracting flu in the future")
Explanation:
Antiviral drugs are recommended for both treatment and prevention of flu. They can protect you from getting viral infections or spreading a virus to others.
answer in a paragraph
During interphase, how does a cell prepare for division? Describe cell division, including the processes of mitosis and cytokinesis. Be sure to describe the mitotic steps.
Answer: Interphase is the phase in the cell cycle during which cells that will undergo mitosis prepare for division. In interphase, DNA of the cell copies. After that cell undergoes mitosis, which is the phase of the cell cycle during which cell divides on two identical. Mitosis consists of four phases:
1. Prophase: Chromatin in the nucleus condenses and chromosomes pair up
2. Metaphase: Chromosomes line up at the centre of the cell.
3. Anaphase: The sister chromatids separate from each other to the opposite sides of the cells.
4. Telophase and Cytokinesis: Membrane forms around each set of chromosomes on two opposite sides of the cells and cell divides into two identical daughter cells.
The eyes of some birds contain cells that detect ultraviolet (UV) light.
UV light is reflected by some fruits and the urine of small mammals.
Explain how birds that detect UV light have evolved from birds that could not detect
UV light
[6 marks
Birds that detect UV light have favorable characteristics that enable them to survive and reproduce. These characteristics are passed on to their offspring.
According to Darwin's theory of evolution, organisms that are better adapted to their environment live long enough to survive and reproduce and pass on these favorable traits to their offspring.
Since birds depend on these fruits for food and these fruits reflect UV light. A bird that can not detect UV light will find it difficult to obtain food. Hence, birds that have developed the ability to detect UV light will live long enough and reproduce, passing on these favorable characteristics to their offspring. Hence, birds that can detect UV light appears from birds who do not originally detect UV light.
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one more 20 points what is sun light ?
Answer: sun light are light that comes from sun only
Explanation:
if a plant cell and animal cell were placed in a dilute salt solution and than transferred to distilled water what will happen to the cells
higher water concentration outside the cell to a lower water concentration inside the cell
Explanation:
water will defuse from a higher water concentration outside the cell to a lower water concentration inside the cell. Red blood cells are placed in a solution with a lower water Concentration compared to content 1.7% salt solution will lose water by the osmosis and shrink
How does golgi apparatus and lysosomes work together
Answer:
A lysosome is basically a specialized vesicle that holds a variety of enzymes. ... Those proteins are packaged in a vesicle and sent to the Golgi apparatus. The Golgi then does its final work to create the digestive enzymes and pinches off a small, very specific vesicle. That vesicle is a lysosome.
Canine Respiratory System. I need to figure out about how it works. Like a step by step on how it’s processed. I can’t find any good articles that actually explain.
Answer:
The Respiratory System helps you breath, here are the steps for it
(I have terrible spelling so sorry if you don't understand the words)
Explanation:
1) You take a breath
2) It goes down the treacha
3) Goes into the lungs
4) then the Bronchial tubes to the capillaries
5) The capillaries make perfect oxygen, and makes you breath out the Carbon Dioxide
Sorry if this explanation is super confusing or terrible
Which cellular component is considered an organelle?
Answer:
Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles. Ribosomes are not enclosed within a membrane but are still commonly referred to as organelles in eukaryotic cells. Membrane-bound organelles. Membrane-bound organelles are cellular structures that are bound by biological membrane. Examples of membrane-bound organelles are nucleus, endoplasmic reticulum, Golgi apparatus, mitochondria, plastids, lysosomes and vacuoles.
Have a great day friend! :D
Answer:
Organelles play an important role in a variety of cell processes. The nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles are all organelles found in animal cells. Although ribosomes are not surrounded by a membrane, they are nonetheless referred to as organelles in eukaryotic cells.
Explanation:
ORGANELLESAn organelle is a specialized subunit of a cell that has a defined role in cell biology. The name organelle stems from the idea that these structures are sections of cells, similar to how organs are parts of the body, therefore the diminutive suffix -elle. Organelles are either independent lipid bilayer-enclosed functional units (also known as membrane-bound organelles) or spatially distinct functional units without a lipid bilayer surrounding them (non-membrane bound organelles). Although most organelles are functional units within cells, some functional units that extend outside of cells, such as cilia, the flagellum and archaellum, and the trichocyst, are often referred to as organelles.Learn more about Organelles here
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write the two importance of cilia in ciliated protozoan
Explanation:
They are primarily responsible for locomotion, either of the cell itself or of fluids on the cell surface. They are also involved in mechanoreception. There is even a class of microorganisms named for these small structures. Ciliates are protozoans that possess cilia which they use for both locomotion and feeding.
What are some possible applications of therapeutic cloning?
Answer:
Hey mate....
Explanation:
This is ur answer....
Other applications of therapeutic cloning include the diagnosis of epigenetically triggered cancer and the tailoring of a treatment using SCNT, the creation of animal models of human diseases, and could eventually lead to tissue engineering of organs de novo.
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Which two formulas contain 4 atoms of oxygen
Answer:
Methane CH4 1 carbon atom : 4 hydrogen atoms
Sulfuric acid H2SO4 2 hydrogen atoms : 1 sulfur atom: 4 oxygen atoms
Give an example of a buffer in the body.
Answer: Several substances serve as buffers in the body, including cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid.
Explanation:
give difference Himalaya rivers- Peninsula river?
Answer:
- Himalayan rivers get water from snow and rain,
-whereas Peninsular rivers are fed by rain only.
-Himalayan Region is the shape of an arc.
- The Peninsular Plateau is in the shape of a triangle.
-Himalayan Region is made up of sedimentary rocks
- The Peninsular Plateau is made up of metamorphic and igneous rocks.
in which order do plants development
Answer:
According to plant physiologist A. Carl Leopold, the properties of organization seen in a plant are emergent properties which are more than the sum of the individual parts. "The assembly of these tissues and functions into an integrated multicellular organism yields not only the characteristics of the separate parts and processes but also quite a new set of characteristics which would not have been predictable[by whom?] on the basis of examination of the separate parts."[7]
Growth
Leaf development
Flower development
References
why behavioral perspectives is the most logical perspectives in your opinion. Explain
Answer:
The behavioral approach is the most logical perspective because it is easier to quantify and collect data and information when one is conducting a research.
Explanation:
Where does a plants food come from
1. The food comes in from the soil through the plants roots
2. The food comes from the air through the plants leaves
3. The plant makes its food from the carbon dioxide and water
4. The plant makes its food from minerals and water
Answer:
Actually, you made me confused!
The food comes from plant root in the form mineral's and water and they also use Gas as CO2.
If there is sunlight, they can even convert the light energy into Chemical, in the form of sugar (Glugose)
We call this process as Photosynthesis.
Answer is 3, food dont come from ground, nor just CO2, it requirs minerals and Water too...
Although chickens, chimpanzees, cows, and humans share a gene for insulin, two species are more closely related to one another than the others. Select the correct pair of species. (10 points)
A. chickens and cows
B. chimpanzees and cows
C. chickens and humans
D. chimpanzees and humans
As the rise of humans or the homosapins on the planet the earth was full of creatures from all races and they were located in different habitats and inches.
The rise of man was initiated by the primates and marsupials and these later on lead to the development of monkey like large land animals. The gene of insulin is hared between the man and his processor chimpanzee.Hence the option D is correct.
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Which organ system is used for smelling
What is plants?
Answer will be marked as brainlist.
Answer:
Plants are multicellular organisms in the kingdom Plantae that use photosynthesis to make their own food. There are over 300,000 species of plants; common examples of plants include grasses, trees, and shrubs. Plants have an important role in the world's ecosystems. ... The study of plants is called botany.
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The molecule is illustrated in figure ________.
A) is a saturated fatty acid B) stores genetic information
C) will be liquid at room temperature D) is a carbohydrate
The molecule is illustrated in the figure is an unsaturated fatty acid. These molecules are liquid at room temperature (Option C). It is for that reason that unsaturated fatty acids are called oils.
The unsaturated fatty acids are liquid at room temperature, thereby they are known as oils (they are mainly found in plant fats).
The unsaturated fatty acids have one or more double bonds of carbon to carbon atoms.
Conversely, saturated fatty acids are solid at this temperature and do not have double bonds (they are mainly found in animal fats).
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The first steps in glycolysis involve
A) splitting glucose into two three-carbon molecules.
B) generation of ATP.
C) reducing glucose.
D) adding two phosphates from ATP to glucose.
E) both the addition of two phosphates to glucose, and then splitting glucose
Answer:
E I think
Explanation:
Turning glucose into pyruvates (Glucose got split)
What does a pyramid of biomass represent? A. Amount of living tissue within a tropic area.
B. Percentage of energy that’s passed through each tropic level.
C. Range of food webs found in one trophies level.
D. Number of total organisms within each trophic level.
Explanation:
I hope it's helpful
If a mutation occurs such that splicing does not remove one of the introns in a gene, what effect will this have on the protein encoded by that gene
Translation will continue, but it is likely that a nonfunctional or aberrant protein will be made as a result of this effect.
Mutation is described as the alteration in the genetic sequence caused by varying effects. Diseases and exposure to dangerous materials or elements (like x-rays) can cause mutation.
However, when alteration in a genetic sequence is effected such that the splicing that occurs prior to mRNA translation, does not remove a segment of a DNA or RNA molecule (which does not code for protein), and this will disrupt the gene sequence. Although, translation will continue, but the protein synthesised will be a nonfunctional or abnormal one.
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