Answer:
Part A: False
Part B: Liver enzymes may activate some innocuous compounds, making them mutagenic
Explanation:
The Ames test, also known as Salmonella typhimurium reverse mutation assay, is a bacterial short-term technique used to identify if a particular chemical compound may cause mutations in target cells. It has been shown that there exists a positive correlation between carcinogenicity and mutagenicity in the Ames test, but this correlation is not absolute. In the Ames test, a rat liver homogenate (containing liver enzymes) can be added in order to identify substances that are not mutagenic themselves but are metabolized in order to form a mutagen (e.g., benzopyrene).
If your cells couldn't go through meiosis- how could this affect you?
Answer:
An organism would not be able to reproduce without meiosis.
Explanation:
Between meiosis and mitosis, meiosis is by far not as important. If you are a asexual organism, this would be NOT IMPORTANT whatsoever. If you are a sexual organism, this would LARGLY effect you. But on a world scale, this is NOT AS IMPORTANT.
This is because, without mitosis, you could not heal and would die much much younger since your cells could not be replaced. On the other hand, without meiosis, any organism that reproduces sexually would be unable to do so, which could lead to extinction in many, many species. This would not be harmful, however, to species that can also or mainly reporuduce asexually through budding, fragmenting, or sporing. So overall:
Organisms that produce sexually would go extinct.
This is the only real affect I can think of. Since meiosis does not produce any cells aside from reproductive cells. And asexual organisms produce reproductive cells through other means.
Ti⊂k∫∈s ω∅∅p
Please Help I will mark bRAINLIEST
Answer:
d
Explanation:
In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.
I mark you brainiest just please answer this question for me please
Answer:
It is C, To fill the space between the cell membrane and the nucleus.
Explanation:
I hope this helps! Have a great rest of your day!
What helps meteorologists to forecast the weather?
Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists
Answer:
Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models.
ASAP PLS!!!!
Why is sweating an effective way to cool the body?
A. Evaporating water absorbs excess heat from the skin.
B. Evaporating water releases excess heat to the skin.
C. Condensing water absorbs excess heat from the skin.
D.Condensing water releases excess heat to the skin.
C. Condensing water absorbs excess heat from the skin.
Answer:
b or c i hope this helps
Explanation:
Which arrangement of the earth, sun and moon create the highest high tides and
the lowest low tides (greatest tidal range)? *
new and full moon phases
waning and waxing crescent moons
waning and waxing gibbous moons
O first and third quarter moons
Answer:first and third quarter moon
Explanation: closest to the earth
Which of the following statements is true about the process of Photosynthesis? *
A. Carbon Dioxide is produced
B. Sugar is produced
C. ATP is produced
D. Water is produced
Answer:
carbon dioxide is produced
Explanation:
I hope this helps :)
5. What does Grover give Percy?
Answer:
Explanation:
Grover gives Percy a present in a shoebox and it's the horn that Percy snapped off of the head of the Minotaur.
Answered by the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!
HOPE THIS HELPED!!
In at least 200 words explain how DNA replicates
Answer: Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin. Several enzymes and proteins then work together to prepare, or prime, the strands for duplication. Finally, a special enzyme called DNA polymerase organizes the assembly of the new DNA strands. The following description of this three-stage process applies generally to all cells, but specific variations within the process may occur depending on organism and cell type.
~i hope this helps :)
Answer:
QUESTION:
ANSWER:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, like the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication.
The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands. As the helicase moves along the DNA molecule, it continues breaking these hydrogen bonds and separating the two polynucleotide chains
Meanwhile, as the helicase separates the strands, another enzyme called primase briefly attaches to each strand and assembles a foundation at which replication can begin. This foundation is a short stretch of nucleotides called a primer
After the primer is in place on a single, unwound polynucleotide strand, DNA polymerase wraps itself around that strand, and it attaches new nucleotides to the exposed nitrogenous bases. In this way, the polymerase assembles a new DNA strand on top of the existing one
Explanation:
A lot more than just 200 words sorry.
Hope that this helps you out! :)
If you have any questions please put them in the comment section below this answer.
Have a great rest of your day/night!
Please thank me on my profile if this answer has helped you.
How do u use a codon chart?
This is a question that has been confusing - In addition to carbon dioxide, what other two ingredients does a plant need for photosynthesis?
Answer:
Carbon dioxide, water and sunlight
Answer:
water and sunlight
Explanation:
What does a bioprospector do?
Answer:
bioprospecting. The analysis of plants, animals, insects and other organisms in an ecosystem with high biodiversity for therapeutic candidate molecules and substances.
Explanation:
Answer:
It does the analysis of plants, animals, insects and other organisms in an ecosystem with high biodiversity for therapeutic candidate molecules and substances.
Explanation:
I only have 5 minutes!!!!! Help no websites help me ASAP fill in the blank and don’t answer it if you don’t now
Answer:
i think it's element
Explanation:
At what stage of a crisis does a person accept the reality of the situation and begin to take action?
a.first
b.second
c.third
d.fourth
Answer: b.second
Explanation:
In the second stage of crisis a person accept the reality of the situation and begin to take action. The correct option is b.
What are crisis?A condition that is extremely difficult or dangerous, when there are many problems is renowned as crisis.
There are five stages of crisis, these are:
Signal detection.Accessing, accepting and prevention.Damage containment.Recovery.Learning.Thus, the correct option is b.
For more details regarding crisis, visit:
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5. Write the mRNA strand for the given DNA strand.
a. ATGCTGCACATGCTGT
b. GGACCT AGATAATGC-
Answer:
Please fix question or do you want both a and b with the mrna strand?
Explanation:
what does not pass through the stomata of leaves
Carbon dioxide and oxygen cannot pass through but move in and out
what can a negative consequence of humans being hunter-gatherers?
A. they needed to stay in one location for food
B. Nate cultivated their own food
C. they had to move around to find food
D. they had to have large families to help on the farm
Answer:
C
Explanation:
Please help On this assignment I wanted to know if anyone know what the P and X and what I am supposed to put down right there
Answer:
so basically your Dominant and recessive is there any more information for this question because i need more information to help you.
Explanation:
what triggers angry in the brain?
Answer:
amygdala
Explanation:
Answer:
Anger starts with the amygdala stimulating the hypothalamus, much like in the fear response. In addition, parts of the prefrontal cortex may also play a role in anger. People with damage to this area often have trouble controlling their emotions, especially anger and aggression. Epinephrine or adrenalin released by medulla of the adrenal glands, surges at the time of panic and emergency. It provokes stress response and brings out the arousal of extreme emotions like fear, anger or amusement.
Explanation:
hope this helps! brainliest?
Which of the following best explains the roles plants and animals play in recycling carbon? *
25 points
Plants and animals both take in carbon through digestion. They return it to the cycle through decomposition.
Plants collect and store carbon through photosynthesis. Animals exhale carbon dioxide through respiration.
Animals produce carbon through photosynthesis. Plants take in carbon for during cellular respiration.
Plants produce carbon dioxide through photosynthesis. Animals take in carbon dioxide for breathing.
Answer:
the second one is correct
Marcus grew three rosemary plants. He put one in
direct sunlight, one in the shade, and one in the
dark. The plant in the sun grew the most quickly
and looked the healthiest. Marcus concluded that
rosemary plants grow best in the sun.
How would you evaluate Marcus's conclusion?
O A. His conclusion is valid because his
experiment included a control.
B. His conclusion is valid because he tested
only one variable.
O C. His conclusion is flawed because he did
not perform enough trials.
O D. His conclusion is flawed because it is
based on the appearance of the plants.
Answer:
His conclusion is flawed because he did
not perform enough trials.
Explanation:
i jus took the test
¿Pueden los icebergs ser considerados como
un tipo de glaciar?
Answer:
La diferencia entre un iceberg y un glaciar es que el iceberg es la pieza de un glaciar que se desprende (o se rompe) cuando las temperaturas suben. Los glaciares están formados por una gran masa de mezcla de nieve y hielo que cubre el fondo del valle de una cadena montañosa.
Explanation:
Please help.................
Answer:
C i think.......................................
WILL IVE BRAINLIEST!!
Describe how the life cycles of the grunion and the horseshoe crab are timed to the rhythm of the tides?
Answer:
Grunion (Leuresthes tenuis): life begins at high tide. During summer and spring, thousands of these fish swim up onto sandy beaches (carried in by high tide). This is called a grunion run, and it occurs ta night during the new moon and full moon when the tide is highest. The females wiggle into the sand and lay thousands of eggs as the males deposit sperm around them. Afterward, they are swept back into the sea. The spawning is timed so exactly that it occurs only on the second, third, and fourth days that follow a new or full moon. After the grunion eggs are fertilized, they incubate for two weeks until the next new or full moon occurs.
Horseshoe Crab (Limulus polyphemus): during late May and early June, vast numbers of horseshoe crabs come together in shallow bays, marshes, and inlets along the Atlantic and Gulf coasts, waiting to come up on the beaches to spawn. The signal to begin is provided by the moon. During the new and full moons, when tide is highest, the crabs come ashore. The female produces a cluster of tiny eggs on her abdomen, and the eggs are fertilized by the male's sperm, and then deposited out in the sand by the female. The next two weeks, the eggs incubate until they hatch during the next full or new moon. When the high water reaches the eggs, they hatch and go out into the ocean.
Explanation:
Answer: Grunion (Leuresthes tenuis): life begins at high tide. During summer and spring, thousands of these fish swim up onto sandy beaches (carried in by high tide). This is called a grunion run, and it occurs ta night during the new moon and full moon when the tide is highest. The females wiggle into the sand and lay thousands of eggs as the males deposit sperm around them. Afterward, they are swept back into the sea. The spawning is timed so exactly that it occurs only on the second, third, and fourth days that follow a new or full moon. After the grunion eggs are fertilized, they incubate for two weeks until the next new or full moon occurs. Horseshoe Crab (Limulus polyphemus): during late May and early June, vast numbers of horseshoe crabs come together in shallow bays, marshes, and inlets along the Atlantic and Gulf coasts, waiting to come up on the beaches to spawn. The signal to begin is provided by the moon. During the new and full moons, when tide is highest, the crabs come ashore. The female produces a cluster of tiny eggs on her abdomen, and the eggs are fertilized by the male's sperm, and then deposited out in the sand by the female. The next two weeks, the eggs incubate until they hatch during the next full or new moon. When the high water reaches the eggs, they hatch and go out into the ocean. brainliest?
Explanation:
Hi pls help i need to answer question based on the video Bill Nye science guy magnetism.
Some flowers show incomplete dominance. If RR = white and R'R' = red, which phenotypic ratio would
be expected in the o spring of two pink flowers?
Answer:
1 red: 2 pink: 1 white
0 red: 4 pink: 0 white would be the phenotypic ratio expected in the o spring of two pink flowers. So, the correct option is (D).
What is Phenotypic ratio?Phenotypic ratio defined as the relative number of offspring expressing a particular trait or combination of traits, which can be determined by performing a test cross and the frequency of the trait or trait combinations being expressed depending on the genotype of the offspring can be identified.
Phenotypic ratio is expressed as the ratio of different phenotypes present in the progeny of a cross where the ratios are numerical comparisons. For example, if one has three mangoes and two oranges, the ratio of mangoes to oranges will be 3:2.
For above given information, if we cross RR which is white with R'R' which is red, we will get 4RR' offspring which are pink in color. then the ratio will be 0 red: 4 pink: 0 white.
Thus, 0 red: 4 pink: 0 white would be the phenotypic ratio expected in the o spring of two pink flowers. So, the correct option is (D).
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Please Help I willl mark Brainlist Please
Answer:
4 I think
Explanation:
The cytoplasm is home to many activities of the cell as it contains molecules, enzymes that are crucial in the break down of the waste. The cytoplasm also assists in metabolic activities. Cytoplasm provides shape to the cell. It fills up the cells thus enabling the organelles to remain in their position.
What occurs when someone exhales? A. The rib cage contracts, but the diaphragm relaxes. B. Both the rib cage and the diaphragm relax C. Both the rib cage and the diaphragm contract. D. The rib cage relaxes, but the diaphragm contracts
Answer:
Answer is A ............
Edit: its actually D... i just verified
Answer:
The answer be D if you doubt you can try out the practical yourself.
located at the top of the trachea, the _____ helps a person speak.
Answer:
It is either the epiglottis or larynx
Explanation:
Which plant structure absorbs most of the water and nutrients needed from the soil? tap roots secondary roots root hairs fibrous roots
Answer:
Root hairs
Explanation:
This is because the root hairs are part of root structure that are tubular and have lateral enlongations.
The root hairs increase the surface area of the root and allow for exchange.
They gave direct contact with the soil and then absorb water and nutrients to their increased surface area.