Answer:
ExplanMitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. The word "mitosis" means "threads," and it refers to the threadlike appearance of chromosomes as the cell prepares to divide. Early microscopists were the first to observe these structures, and they also noted the appearance of a specialized network of microtubules during mitosis. These tubules, collectively known as the spindle, extend from structures called centrosomes — with one centrosome located at each of the opposite ends, or poles, of a cell. As mitosis progresses, the microtubules attach to the chromosomes, which have already duplicated their DNA and aligned across the center of the cell. The spindle tubules then shorten and move toward the poles of the cell. As they move, they pull the one copy of each chromosome with them to opposite poles of the cell. This process ensures that each daughter cell will contain one exact copy of the parent cell DNA.ation:
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
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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What event might occur when favorable adaptations build up in a population over many generations?
starvation
extinction
migration
speciation
will give brainlist
Answer:
D. speciation
Explanation:
Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.
What does the circulatory
and respiratory systems do?
Answer:
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Explanation:
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.
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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Which of the following require clear warning signs or labels? Check all that apply
The options that would clearly require the use of warnings would be:
Places where a spill was recently cleanedContainers with bodily fluidsWhat is a warning sign?This is the term that is used to refer to the signs that are placed in objects so that it would serve as precaution to the people around who may come in contact with those objects.
The goal of the warning sign is to ensure that people do not suffer un desirable consequences when they get in contact with these items which may have the potentials of causing them harm.
For instance bodily fluids that are infected may be harmful to other people hence the need to ensure that it is well protected and has all of the right labels on it.
Also area that spills have occurred may be radioactive area as and they may be dangerous to the health of persons that go near them.
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Answer:C,D
Explanation:
Dinitrophenol (2,4-DNP) destroys proton gradients without affecting anything else about a membrane. Its pKa slightly acidic, so it can be protonated or unprotonated in cells.a. What would be the effect of adding dinitrophenol to the mitochondrial inner membrane
Answer:
the effect of adding dinitrophenol to the mitochondrial inner membrane is -:
Production of ATPNo electron transferproduction of more sugar as energyUncoupling of ETC(electron transport chain)Explanation:
Dinitrophenol is an uncoupler which can isolate the progression of electrons and siphoning of H+ particles for ATP Synthesis. On adding the dinitrophenol, the energy from the electron move can't be utilized for ATP blend. It has been utilized in diet pills and as a counting calories help. It goes about as protonophore and permits spillage of the protons through the internal mitochondrial layer which subsequently sidesteps ATP synthase and consequently the creation of ATP creation gets wasteful. It hinders the ATP synthase and thus its capacity to deliver ATP. It likewise influences the ETC in light of the fact that forestalls development of electrons over the ETC. Uncoupling the ETC would prompt diminished ATP creation and consequently increasingly more sugar is used as energy. This would restrict accessibility of ATP and make a deadly circumstance.
The oxygen used by animals and plants during cellular respiration came from where
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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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
Visible light is a form of
radiation.
Check it
Answer:
electromagnetic radiaton
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.
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:
Anyone know the answer?
An aquifer is water stored in the ?
Answer:
They are stored in the underground reservoirs.
Explanation:
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.
Help with these two ?
The____
absorbs digested food.
Plz help will give Brainlyliest answer first plz and thanks T-T
Answer:
small intestine
Explanation:
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.
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
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?
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:
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
A byproduct of respiration is what?
Answer:
Carbon dioxide and water are byproducts of cellular respiration
When meiosis occurs, how many chromosomes does it create?
Answer:23 chromosomes
Explanation: During meiosis only half of the 46 chromosomes are created.
I need help on this. Plz help!!!
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
The improvement of animal genetics over time requires detailed
____ & ___ of performance and genetic
information throughout generations.
Answer:
easy
Explanation:
results,details
Convection occurs when heat transfers through
a.direct contact
b.electromagnetic waves
c.no particles of matter
d.fluid movement
