Answer:
no
Explanation:
there are just a few of them
When meiosis occurs, how many chromosomes does it create?
Answer:23 chromosomes
Explanation: During meiosis only half of the 46 chromosomes are created.
Did humans evolve from sharks?
Answer:
I'f a sjw can identity as a moose humans definitely evolved from sharkes
Explanation:
read if again hore
A person is admitted into the hospital with an unknown ailment. The patient is seen by Triage
and immediately put on intravenous liquid or more commonly known as an IV by a brand-new
nurse. Unfortunately for the patient, the nurse did not properly prepare the IV, and hooked the
patient to an IV fluid line consisting only of distilled water. HELP!!
Answer:
D)The environment in the patient's cells will be hypertonic and will cause the cells to burst.
Explanation:
A person is admitted into the hospital with an unknown ailment. The patient is seen by Triage and immediately put on intravenous liquid or more commonly known as an IV by a brand-new nurse. Unfortunately for the patient, the nurse did not properly prepare the IV, and hooked the patient to an IV fluid line consisting only of distilled water.
A)The environment in the patient's blood will be isotonic if the cells and their environment have reached equilibrium the cells will remain the same size.
B)The environment inside and outside of the patient's cells will be isotonic and may cause the cells to burst.
C) The environment in the patient's cells will be hypotonic and will cause the cells to shrink.
D)The environment in the patient's cells will be hypertonic and will cause the cells to burst.
So what happens when people get an IV is an intravenous solution that goes straight to the blood flow, helping immidiately the person that needs the medicine, in this case, the person is only getting distilled water, this can create an hypertonic environment which happens when there's too much water outside the cell, and eventually it gets inside the cell, this make it burst caus it can no longer contain more water inside of it. so the correct answer would be:
D)The environment in the patient's cells will be hypertonic and will cause the cells to burst.
Wombats are mammals with a gestation period of about
20 days. At birth, the baby wombat, called a joey, is tiny
and hairless. It crawls into its mother's external pouch
where it continues to develop for about eight months.
Based on this information, wombats are classified as
______mammals.
Answer:
marsupials
Explanation:
Which life process can be defined as creating energy from the food that you eat?
a)Mitochondria / mitocondrias
b)Respiration / respiración
c)Nutrition / nutrición
d)Growth / crecimiento
please help me
I need help on this. Plz help!!!
An animal cell: the human body. Different but also alike. Your skin acts as the first line of defense against invaders. In this animal
cell, the
has a similar purpose.
A)
Golgi body
B
mitochondria
C
plasma membrane
D
endoplasmic reticulum
Answer:
Explanation:
C.
In this animal cell, the has a similar purpose as of skin is plasma membrane. The correct option is C.
What is plasma membrane?The membrane that basically divides the interior of the cell from the external environment is known as the plasma membrane, sometimes known as the cell membrane, and it is present in all cells.
The cell membrane isolates a cell's interior contents from its external environment, just like your skin's outer layer does for your body and its surroundings.
The cell membrane acts as a barrier to protect it and controls what can enter and leave the cell.
One of the body's first lines of defense against hazardous germs is the skin, which acts as a barrier. Skin tissue contains specialized immune cells that aid in the defense against invaders.
The skin, however, is home to a variety of communities of helpful bacteria known as the skin microbiota.
Thus, the correct option is C.
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The process of natural selection favors certain characteristics in organisms, while it selects against other characteristics.What would happen if there was zero variation between all of the organisms on Earth?
Give a scientific reason of the following:
Soil temprature plays an important role in chemical reactions.
Answer: Soil temperature directly affects plant growth. Most soil organisms function best at an optimum soil temperature. Soil temperature impacts the rate of nitrifi- cation. It also influences soil moisture content, aeration and availability of plant nutrients.
Muscles which are made of numerous fibers are called
A. smooth
B. striated
C. cardiac
Answer:
Your answer would be striated
Explanation:
Muscles that are made of numerous "stringy" fibers are often called striated
An aquifer is water stored in the ?
Answer:
They are stored in the underground reservoirs.
Explanation:
8. What abiotic factors distinguish different biomes?
The abiotic factors like temperature, precipitation (rainfall), and the intensity of wind are primarily responsible for distinguishing different biomes.
What are Biomes?A biome may be defined as a very large ecosystem that is running in nature in an unmanaged way. In a more simple sense, it is a very large area that is characterized by a particular type of vegetation. Some examples of biomes include tropical rainforests, coral reefs, grasslands, etc.
In tropical rainforests, rainfall is found to be greater than 230cm per year and temperature may range from 25-29°C. In tropical deciduous forests, temperatures may range from 25-39°C and rainfall is found to be 130-280 cm. per year.
In temperate rainforests, the temperature on average ranges from 5-25°C, and rainfall is 200 cm per year. In temperate deciduous forests, the temperature is 12°C and rainfall may range from 75-200 cm per year.
Therefore, abiotic factors like temperature, precipitation (rainfall), and the intensity of wind are primarily responsible for distinguishing different biomes.
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Compare and contrast what happens in mitosis and meiosis. A) Mitosis is imporyant for growth and repair
Answer:
Mark as Brainliest!! Please!!!!
Explanation:
The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue.
The oxygen used by animals and plants during cellular respiration came from where
When plasmids are mixed with histones, they will bind fewer histones than the equivalent length of linear DNA. Upon addition of a topoisomerase, more histones will be bound. Explain this observation.
Answer:
Topoisomerases relax the positive supercoil of the plasmid when histones bind, thereby allowing for more histones to bind.
Explanation:
Plasmids are closed-circular DNA. Unlike linear DNA which can bind a greater number of histone molecules due to greater freedom of rotation, when plasmids binds to a histone molecule, a negative supercoil is introduced in the plasmid. However, since the plasmid is closed and the DNA is not broken, a compensatory positive supercoil in the unbound region of DNA is introduced. This limits further binding of histone molecules to the plasmids.
However, with the introduction of topoisomerases, they relax the positive supercoils, thereby stabilizing the negative supercoil. Further binding of histone molecules are initiated with the formation of negative supercoils and relaxing of positive supercoils result in more histone molecules bindingd to the plasmids.
Convection occurs when heat transfers through
a.direct contact
b.electromagnetic waves
c.no particles of matter
d.fluid movement
Help with these two ?
how is cell differentiation different than mitosis
a. cell differentiation only occurs after a wound
b. cell differentiation produces cells with different gene expressions
c. cell differentiation does not cause proliferation
d. cell differentiation produces cells with different DNA
Anyone know the answer?
A byproduct of respiration is what?
Answer:
Carbon dioxide and water are byproducts of cellular respiration
The enzyme threonine deaminase, in addition to being controlled by feedback inhibition, is controlled by _____.
Answer:
noncompetitive inhibition
Explanation:
Non-competitive inhibition (also known as allosteric inhibition) is a type of enzymatic reaction where an inhibitor binds to the enzyme and thus reduces its enzymatic activity. Non-competitive inhibitors are known to bind with the enzyme at allosteric sites, i.e., at different sites rather than the active site. In consequence, during non-competitive inhibition, the substrate can still bind to the enzyme, although that binding to the inhibitor reduces its catalytic efficiency. Conversely, competitive inhibition is produced when the inhibitor binds to the enzyme at the active site, thereby preventing from binding to the substrate.
Genes C and D are linked with a recombination frequency of 0.4. Both genes segregate dominant (C and D) and recessive alleles (c and d). The parental cross CCDD x ccdd is performed and then the F1 progeny is testcrossed to ccdd. If 10 individuals are counted in the F2, how many are expected to be dominant for BOTH genes
Answer: 3 individuals.
Explanation: Recombination frequency is the proportion of offspring who will inherit the recombinant genes.
The F1 progeny has genotype CcDd. When crossed with an individual with genotype ccdd, F2 generation can be CcDd or ccdd in a 50/50 probability.
The recombinant frequency is 0.4, which means in a total of 10 individuals of F2, 4 will be recombinant, so 6 will be parental, i.e., will carry the same genes of their parents.
From the population of 6, half of them will carry dominant genes for both features, so:
6 x 0.5 = 3
Therefore, from 10 individuals of F2, we expected 3 to be dominant for both genes.
The improvement of animal genetics over time requires detailed
____ & ___ of performance and genetic
information throughout generations.
Answer:
easy
Explanation:
results,details
How much will atmospheric carbon change in one year ? In 10 years ? In 100 years ?
Answer:
in 1 year
854
in 10 years
890
in 100 years
1250
Explanation:
gizmo :)
The atmospheric carbon change that will be witnessed in 1, 10, and 100 years will be 854, 890, and 1250 years.
Carbon is an important element for all the firms of life that are on Earth. It should be noted that life forms take in carbon to manufacture food and also release carbon that's needed for respiration.
The intake and output of carbon are important to plant and animal life. The atmospheric carbon change that will be witnessed in 1, 10, and 100 years will be 854, 890, and 1250 years. Climatic change has been a factor in the increase in the amount of carbon dioxide that's in the atmosphere.
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Visible light is a form of
radiation.
Check it
Answer:
electromagnetic radiaton
Explain how a carbon atom in carbon dioxide becomes a hydrocarbon and organic compound before becoming carbon dioxide again.
Answer:
See below
Explanation:
Used in photosynthesis to become glucose, converted into glycogen in the body. Lipogenesis then converts it into fat, which is then again metabolized in respiration to become CO2
Carbon dioxide is consumed by plants and converted into hydrocarbon compound glucose by photosynthesis and during cellular respiration, hydrocarbon is released to carbon dioxide again to release into the atmosphere.
What is photosynthesis?Water and carbon dioxide are converted into oxygen and glucose in photosynthesis, plant takes glucose and generates oxygen as a byproduct.
Oxygen and glucose are converted into water and carbon dioxide in cellular respiration. The by-products of the process include carbon dioxide, water, and ATP, which would be turned into energy.
During cellular respiration, hydrocarbon is released to carbon dioxide again to release into the atmosphere. The process of respiration involves the production of carbon dioxide and water as a result of the breakdown of carbohydrates.
Therefore carbon dioxide is converted to hydrocarbon and during cellular respiration is again released as CO2.
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The____
absorbs digested food.
Plz help will give Brainlyliest answer first plz and thanks T-T
Answer:
small intestine
Explanation:
Capillary walls are only one layer of cells thick. Passage of oxygen into and out of the capillaries is controlled most by which process? A. collection of waste material
B. breakdown of materials
C. diffusion of material
D. storage of materials
Answer:
A. collection of waste material or diffusion of material
Explanation:The walls consist of a very thin layer of epithelial tissue encased in a moist membrane which enables the diffusion of nutrients and oxygen out of the blood and the diffusion of waste products into the blood
Capillary walls are only one layer thick cell layer. Passage of oxygen in and out of the capillaries is controlled mostly by the process of collection of waste materials. Thus, the correct option is A.
What are blood vessels?
Blood vessels are the channels through which blood is distributed to all the body tissues. The vessels make up the two closed systems of tubes that begin and end at the heart. One system is the pulmonary vessels, which transports blood from the right ventricle to the lungs and back to the left atrium.
There are three types of blood vessels which are arteries, veins, and capillaries. These vessels plays a very specific role in the circulation process in the body. Arteries carry the oxygenated blood away from the heart to the other tissues. Veins carry the deoxygenated blood form the body tissues to the heart and lungs and capillaries make the passage between these blood vessels.
Therefore, the correct option is A.
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How are the rock cycle and the water cycle related?
Answer:
The processes are condensation, precipitation, evaporation and transpiration. The rock cycle and water cycle overlap with erosion, transporting, and deposition. This is where the life cycle interacts with the rock cycle. Life decomposes and releases carbon back into the soil, which eventually becomes sedimentary rock.
Explanation:
carbohydrates are the body's main source of ____
Answer:
Carbohydrates are the body's primary source of energy.
Answer:
Energy, Carbohydrates store and give energy