Answer:
a ) Anaphase usually ensures that each daughter cell has the same number of chromosomes as the parent cell.
Explanation:
Mitosis: After DNI duplication and condensation, Sister chromatids of the chromosome, are held together in the equatorial plane until they reach the Anaphase, during which certain enzymes are activated to break the bonds among them and the separation of the chromatids occur, migrating to the opposite poles. Meiosis: Gamete formation involves the random and independent segregation of the alleles. After crossing-over, homologous chromosomes which are located in the equatorial plane, get separated. During anaphase I occur the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair. During Anaphase II, enzymes are activated to break the bonds that keep together the chromosome and separate the sister chromatids.Anaphase (Mitosis) and Anaphase II (Meiosis) are very similar. By separating sister chromatids, anaphase is responsible that each daughter cell has the same number of chromosomes as the parent cell. Some mutations or alterations in the chromatids migration process might occur during anaphase, such as non-disjunction, which is a defect or mistake in the separation of the homologous chromosomes during anaphase of the meiotic division.
Which factor helps determine the fertility rate of a group of people?
A. Access to medicine
B. Death rate
C. Farmland
D. Consumption rate
SUBMIT
The pulse pressure is .
Answer:
Advertisement. The top number (systolic) minus the bottom number (diastolic) gives you your pulse pressure. For example, if your resting blood pressure is 120/80 millimeters of mercury (mm Hg), your pulse pressure is 40 — which is considered a normal and healthy pulse pressure.what levels in the huerachy of biological include in non living things?
A. biosphere and ecosystems
B. community and molecule
C.population and biosphere
D. cell and ecosystems
Answer: The correct option is A.
Biosphere and ecosystems
Explanation:
This is because Biosphere and ecosystems include non living things and biosphere is the layer of the ecosystem that consist of both living and non living things.
Ecosystem consist of a area which consist of living things like plants, animals e t.c interacting with the non living part of the environment I e physical part which include temperature, soil e.t.c.
I need help with both questions
Answer:
I don't know the answer for the question
Why did you not see any chloroplasts in the onion epidermal cells, unlike in the Elodea (Anacharis) cells?
-Chloroplasts in onion cells are hidden by the large central vacuole.
-The part of the onion viewed under the microscope grows underground.
-The purpose of chloroplasts is to make the plant green but onions are not green.
-Chloroplasts are organelles that absorb sunlight energy and perform photosynthesis.
-Plant parts that grow underground are not exposed to sunlight.
-Onions had chloroplasts before they were picked from the ground but the chloroplasts dried up and disappeared after being exposed to the sunlight.
-Onions are not plants and therefore do not have chloroplasts.
-Plant parts that are not exposed to sunlight cannot do photosynthesis.
Draw a line to connect the following terms to their definitions. PLZ HURRY!
A region that has a specific climate and a specific community of plants and animals = biome
A region with low average temperatures and little precipitation = taiga
Long-term temperature and precipitation patterns in a region = climate
What does this experiment indicate about enzyme specificity?
Answer:
wut experiment?
Explanation:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. ... The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code.
Answer:
The answer is in the explanation bellow
Explanation:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
Explain why, throughout the history of life on Earth, living beings have been different?
What is the term for the substances that are
produced in a chemical reaction?
synthesis
reactants
enzymes
products
Answer:
Products
Explanation:
Breathing heavily after running a race is your body's way of *
a. restarting glycolysis.
b. recharging the electron transport chain.
c. repaying an oxygen debt.
d. making more citric acid.
Answer:
The correct option is C.
repaying an oxygen debt.
Explanation:
This is because while running, humans breath shallowly which could not provide the oxygen requirement for the respiratory system and fit in for blood need.
After running, you tend to breathe heavily because your muscle work very hard , the body use more oxygen and produced more carbondioxide, therefore the lungs and respiratory system must try to provide more oxygen to the blood. sympathetic nerves stimulate respiratory muscles
so as to increase the rate at which we breathe.
What are the environmental impacts of deforestation? What is the big deal with cutting down trees, can the forest just be replanted (environmental)
Answer:
The impact of cutting trees is the fact that they release carbon dioxide into the air when they are cut down. Some other imparts are less clean air, animals like squirrels without homes and many others
Can you please mark me brainlist?
What is partially responsible for descent with
modification?
SELECT ALL THAT APPLY
Random mutations
Crossing over during prophase 1
Asexual reproduction
Cloning
Independent assortment during metaphase !
Answer: random mutations
The _______ division of the skeleton consists of the upper and lower extremities; the_____ division of the skeleton is comprised of the skull, vertebral column, sternum and ribs.
Explanation:
The axial skeleton forms the vertical axis of the body and includes the bones of the head, neck, back, and chest of the body. It consists of 80 bones that include the skull, vertebral column, and thoracic cage. The appendicular skeleton consists of 126 bones and includes all bones of the upper and lower limbs.
I hope it helps
GIVING 100 POINTS
Based on the cell theory, which of the following is true? (5 points)
a
All cells are too small to be seen.
b
All living things are made of cells.
c
Small organisms have more cells than large organisms.
d
Large organisms have larger cells than small organisms.
Answer:
b
All living things are made of cells.
That's the answer.
A student collected samples of cells from a woody plant during the spring and produced the drawings below. Sample 1 was collected from the woody stem of the plant. Sample 2 was collected from the root tip of the plant. Cells in different steps of mitosis are labeled with letters A, B, C, D, and E in Sample 2. Describe the role of mitosis in the growth of a plant.
The provided question is incomplete, however, the question asked is a very generalized question, answering it on the knowledge of mitosis.
Answer:
The correct answer is - mitosis has a great role in the growth of plants.
Explanation:
Mitosis is a type of cell division that occurs in the somatic cells of an organism. During mitosis, a parent cell divides into two daughter cells with the same number of chromosomes. There are no recombination takes place. This type of cell division is fast.
Mitosis occurs during asexual reproduction in the form of budding, propagation as well as repairing of the cells as they are fast, such as the regeneration of new cells. The growth of plants and development is dependent on mitosis as they produce cells more efficiently and fast and mitosis is the only cell division found in somatic cells.
What are the reactants and products of photosynthesis? *
glucose and oxygen are the reactants; carbon dioxide and water are the products
carbon dioxide and oxygen are the reactants; glucose and water are the products
Carbon dioxide and water are the reactants, glucose and oxygen are the products
glucose and water are the reactants, carbon dioxide and oxygen are the products
Answer:
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Answer:
glucose and oxygen
Explanation:
The ______ system plays the key role in allowing organisms to have offspring and pass on their unique genetic information.
A.
cardiovascular
B.
musculoskeletal
C.
nervous
D.
reproductive
Select all that apply to El Nino and La Nina Question 1 options: Pacific ocean becomes COLDER El Nino, the mass of air over the ocean brings mild temperatures to US causing a wet winter in the south WARM Pacific produces La Nina, mild winter in the South and colder air in the Northeast. Pacific ocean becomes WARMER El Nino, the mass of air over the ocean brings mild temperatures to US causing a wet winter in the south COOL Pacific produces La Nina, mild winter in the South and colder air in the Northeast.
Answer:
The question you inputted here is formatted kind of jumbly so I can't really answer this
Explanation:
However, I attached a comparison map that should be able to help you identify the ocean currents. When there are no El Nino/Nina weather, Southeast Asia's coast has a small patch of warm ocean currents residing near it, giving the area a humid weather. Sorry, I know this is not really an answer, but hope this helps.
Answer:
COOL Pacific produces La Nina, mild winter in the South and colder air in the Northeast.
Pacific ocean becomes WARMER El Nino, the mass of air over the ocean brings mild temperatures to US causing a wet winter in the south
Explanation:
I took the test and got them right...
if you were given a specimen of an active motile microorganisms which is the type microscope would be most effective in visualizing
the live microbes
Answer:
D. phase-contrast microscopy
Explanation:
I hope I helped :) Would appreciate Brainliest! ;)
Also here's the link for all your answers ;)
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http://www.tusculum.edu/faculty/home/ivanlare/html/microbiology/answer.html#08
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For a specimen of an active motile microorganism, the most effective microscope for visualization would be the phase contrast microscope.
The phase contrast microscopy is a technique designed to make images of live, colorless, and transparent microbes visible by enhancing the contrast. Most light microscope requires that microbes are killed and stained before they can be visible. The phase contrast technique uses optical mechanism such that any slight variation in the phase of the organism leads to a change in amplitude and can be seen in the contrast of its image under the microscope.In summary, the phase contrast microscope would be the most effective microscope to use when a live microbe specimen is in question due to the fact that it would use a phase change to create an enhanced image without having to kill or stain the microbe.
More on the different microscopy techniques can be found here: https://brainly.com/question/5912362
Paheli would like to suggest that containers used for the storage of poisonous materials should be recycled separately, such that recycled plastic is not used to make plastic bags. do you agree with this why
Answer:
Yes, I agree
Explanation:
This is because these storage containers and plastic contain some poisonous chemicals which are dangerous or harmful to living organisms and the environment.
When these chemicals get into the human bodies, they can cause health hazards and when they are washed into the aquatic bodies they can kill aquatic lives. Even if these chemicals are washed in animals drinking water, they can affect the animals negatively.
Charged atoms and molecules must use a ___________________ to cross through the plasma membrane.
Answer: protein
Explanation:
Had the exact question!
Match the reactants to their source. Help please
Answer:
Carbon: Soil. - Water: Atmosphere. I don't really know this, sorry if it's wrong.
Several years later, aided by the research of Rosalind Franklin, biochemists James Watson and Francis
Crick developed the double-helix model of DNA shown in the image to the right. The structure labeled X in
the figure can best be described as a(n)
A. RNA strand
B. Nucleotide monomer
C. Sugar-phosphate backbone
D. Nitrogenous base
Answer:
RNA i Think
Explanation:
We're no strangers to love
You know the rules and so do I
A full commitment's what I'm thinking of
You wouldn't get this from any other guy
I just wanna tell you how I'm feeling
Gotta make you understand
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
We've known each other for so long
Your heart's been aching but you're too shy to say it
Inside we both know what's been going on
We know the game and we're gonna play it
And if you ask me how I'm feeling
Don't tell me you're too blind to see
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
No, I'm never gonna give you up
No, I'm never gonna let you down
No, I'll never run around and hurt you
Never, ever desert you
We've known each other for so long
Your heart's been aching but
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
No, I'm never gonna give you up
No, I'm never gonna let you down
No, I'll never run around and hurt you
I'll never, ever desert you
what type of bond is formed when oxygen combines with hydrogen to form water
A. Ionic
B. Peptide
C. Hydrogen
D. Polar Covalent
E. Nonpolar Convalent
Answer:
Option D is the correct answer of this question
Multiple Select Question
Select all that apply
Which three of the following describe the autonomic nervous system?
Multiple select question.
Subdivision of the peripheral nervous system
Subdivision of the central nervous system
Controls skeletal muscles
Controls smooth and cardiac muscle
Effectors are under involuntary control
Effectors are under voluntary control
Answer:
Subdivision of the peripheral nervous systemControls smooth and cardiac muscleEffectors are under involuntary controlExplanation:
The Autonomic nervous system is a subdivision of the Peripheral nervous system and it is in charge of the involuntary processes in the body such as blood pressure, respiration and the heart rate. As such, its effectors are under involuntary control.
The Autonomic nervous system controls the smooth and cardiac muscles in the body as well as the glands. This is where it earns its other name, the Visceral nervous system.
What do you think? Were zebra mussels intentionally transported to the U.S.? Explain your reason for your answer.
I think they were accidentally brought by large ships coming from Europe. but I would get back up before you answer the question
Answer:
Probably the species was transported by accident to the United States. Unintentionally.
Explanation:
Due to technical problems, you will find the complete answer in the attached file.
Select all that apply
Neuroglia perform the functions of _____.
release of neurotransmitter
insulation of nerve cells
conduction of impulses
protection of neurons
Neuroglia performs the functions of insulation of nerve cells and protection of neurons. The correct option is B and D.
What is Neuroglia?Neuroglia is a type of cell that's the main function is to provide metabolic, physiological, and developmental support to the neurons. They are also called glial, or nerve glue.
Neuroglia is the cells to protect the neurons, provide them insulation and support them.
Thus, the correct options are B, insulation of nerve cells, and D, protection of neurons.
Learn more about Neuroglia, here:
https://brainly.com/question/8050101
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Why are phospholipids of the plasma membrane oriented such that their heads are at the membrane surfaces and their tails are buried in the interior of the membrane?
Answer:
The plasma membrane is semi-permeable. The reason for this is because of the orientation of the phospholipids. The heads at the surface are hydrophilic so they face the water. The tails are hydrophobic so they face away from the water.
Explanation:
The phospholipids of the plasma membrane are oriented such that their heads are at the membrane surfaces and their tails are buried in the interior of the membrane - due to the fact that phospholipids have hydrophobic tails and hydrophilic heads.
Phospholipids consist of fatty acids and alcohol in the plasma membrane are arranged in two layers, known as the phospholipid bilayer. It has a hydrophobic or water-hating tail and a hydrophilic or water-loving head.
it has a head and two tails.As the tails are hydrophobic so, face the inside, away from the water.As the heads are hydrophilic so face outwardHeads are towards intracellular and extracellular fluid.Tails are meet the inner layerThus, the correct answer is - due to two layers of hydrophobic tails and hydrophilic heads.
Learn more about phospholipids:
https://brainly.com/question/20561742
Collagen diseases are a group of human diseases in which the production of collagen throughout the body becomes impaired. Some examples of collagen diseases include systemic lupus erythematosus (SLE or lupus), rickets, and osteogenesis imperfecta. Explain why these diseases often affect the entire body. Hint: Consider the distribution of connective tissue throughout the body.
Answer:
Explanation:
Collagen vascular disease is group of disease that affects the connective tissue.
Collagen is a protein based connective tissue that includes collagen and Elastin.
Collagen is found in the tendons, ligaments, skin, cornea, cartilage, bone and blood vessels while Elastin is a stretchy and formed the major component of ligaments and skin. This connective tissue holds, protect and connect and bind various body structures together both bones, ligaments, and muscles together. When a patient then has a connective tissue disease, the collagen is affected, the elastin are inflamed and every structure connected to the proteins in the body parts are harmed.