When animal cells are grown in a petri dish, they typically stop dividing once they have formed a single, unbroken layer on the bottom of the dish. This arrest of division is an example of.

Answers

Answer 1

Answer:

hope it helps

Explanation:

density dependent inhibition


Related Questions

The testes and ovaries both release the hormone testosterone. Please select the best answer from the choices provided T F.

Answers

Testosterone is a hormone that regulates puberty, function and the development of the male and female organs. The testes and ovaries both release the hormone testosterone.

What is the role of testosterone?

In males, the Leydig cells of the testis and in females, the ovaries produces and releases the hormone testosterone. Also, some amount of the hormone is released by the adrenal gland.

It is major reproductive growth, functioning and stimulating hormone that is also responsible for the physical development of the organism during puberty.

Males have high levels of this hormone as females as they are essential for sperm development and some male physical characteristics.

Therefore, the statement is true.

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How are the nucleotides in dna different from those found in rna?.

Answers

The structural difference between nucleotides rests in two instances: A DNA nucleotide contains deoxyribose sugar, whereas an RNA contains the sugar ribose in every nucleotide. ... Unlike DNA, RNA contains a uracil nitrogenous base instead of thymine.

What is the genetic code of life

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The genetic code is a set of instructions that direct the translation of DNA into 20 amino acids, the basic units of proteins in living cells

Summarize the steps of glycolysis using the key terms ATP, ADP, NAD+, NADH, glucose, and pyruvate.

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Explanation:

LOOK AT THE FLOW CHART

IT MIGHT HELP U OUT

In this question we summarize the steps of glycolysis which is a process that occurs through a series of 10 reactions divided into two steps using the key terms ATP, ADP, NAD+, NADH, glucose and pyruvate.

Steps of glycolysis

1st stage

This step, also known as the preparatory phase or investment phase, consists of five reactions:

1. Phosphorylation of the glucose molecule occurs, in which it receives phosphate from the ATP molecule, forming glucose 6-phosphate;

2. The glucose 6-phosphate molecule undergoes a rearrangement and forms fructose 6-phosphate;

3. Another ATP molecule supplies phosphate to the fructose 6-phosphate molecule, giving rise to fructose 1,6-diphosphate;

4. The fructose 1, 6-diphosphate molecule undergoes a rearrangement, with the opening of its benzene ring, giving rise to two molecules with three carbons each: glyceraldehyde 3-phosphate and dihydroaxethone phosphate;

5. The dihydroaxethone molecule undergoes a rearrangement giving rise to another glyceraldehyde 3-phosphate molecule.

It can be seen that at the end of this first phase, there was only energy expenditure, with the conversion of two ATP molecules into ADP.

→ 2nd stage

This stage, also known as the profit or energy compensation stage, involves energy gain and also consists of five stages, described below:

6. Two molecules of NAD+ (nicotinamide dinucleotide and adenine) are reduced to two molecules of NADH with electrons from the oxidation of glyceraldehyde 3-phosphate to 1,3-diphosphoglycerate;

7. Each molecule of 1,3 – diphosphoglycerate yields a phosphate to one molecule of ADP, thus giving rise to two molecules of ATP and two molecules of 3 – phosphoglycerate;

8. A rearrangement of 3 – phosphoglycerate molecules occurs, forming 2 – phosphoglycerate;

9. The 2 – phosphoglycerate molecules lose a H2O molecule, giving rise to phosphoenolpyruvate;

10. Phosphoenolpyruvate molecules provide a phosphate to an ADP molecule, yielding two ATP and two pyruvate molecules.

With this information, we summarize the steps of glycolysis which is a process that occurs through a series of 10 reactions divided into two steps using the key terms ATP, ADP, NAD+, NADH, glucose and pyruvate.

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i need an answer quick please

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The first, second, and third one is the correct answer.

Explain how mountain ranges might be affected by Deposition.

SCIENCE

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Answer:

It effects it because there's a possibility it can reduce the mountains to a smaller structure (breaking down), like a plateau, which would for sure leave a change in the landforms

Explanation:

~Cornasha_Weeb

This type of receptor, once bound by ligand, can change conformation to allow specific substances to flow down their concentration gradient. This type of receptor is referred to as ____________ . This type of receptor is not an enzyme itself, but is bound to a protein that can exchange GDP for GTP and then stimulate effector proteins, which are usually enzymes. This type of receptor is referred to as ____________ . This type of receptor is a transmembrane receptor. It has an extracellular domain that binds to ligand, and an intracellular domain that can directly phosphorylate other proteins. This is an example of ____________ . This type of receptor binds to hydrophobic ligands. This type of receptor is referred to as ____________ .

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Answer:

Channel linked receptor

Coupled receptor

An enzymatic receptor

An intracellular receptor

Explanation:

Quizlet

What are some characteristics of flowers that could attract the animals
that pollinate them?

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Answer:

Many flowers use visual cues to attract pollinators: showy petals and sepals, nectar guides, shape, size, and colour. I personally think it is very cool how they know what to do to attract pollinators.

Explanation:

brainliest plz?

Green algae are divided into two main groups, the charophytes and the __________.

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Answer:

The green algae are subdivided into the chlorophytes and the charophytes.

Explanation:

Offspring that result from crosses between parents with different traits.

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hybrids
The offspring of crosses between parents with different traits are called hybrids.

A person starts to eat a hamburger. As she takes a bite and chews, an enzyme called salivary lipase helps to begin the process of fat digestion. Which of these is the BEST description of the role of enzymes in digestion?

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Answer:

Role of enzymes in the human body

Explanation:

The chemical reactions that keep us alive - our metabolism - rely on the work that digestive enzymes do. They help to accelerate (catalyze) chemical reactions in the human body.

In some cases, they can cause a chemical reaction millions of times faster than they would without them.

Important functions of enzymes:

Digestive enzymes help the body break down larger complex molecules into smaller ones such as glucose, so it uses them as fuel.

Every cell in our body contains DNA. Each time the cell divides, this DNA must be copied. The process is called DNA replication . Enzymes help in this process by developing the DNA helix and copying the information.

Liver enzymes break down toxins in the body.

Enzymes are especially needed for respiration, digestion, muscle and nerve function, among other important roles.

Answer:

C. Enzymes are proteins that speed up the process of chemcially breaking down food molcules.

Explanation:

7. What do you think it means when you hear the phrase "an organism is adapted to its environment"?

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Answer:

an organism adapted to its environment means the organism has features that'll help them live/reproduce in the environment they're located in. hope this helps (~ ̄▽ ̄)~

Explanation:

11. Make a checklist for
a client to use to
determine normal and
abnormal behaviors of a
pet. Include & label
behaviors that require an
owner to seek veterinary
attention.

Answers

Veterinarians have a great opportunity to save pets’

lives by recognizing that behavioral medicine is as

important as any other field of veterinary medicine,

and can routinely be incorporated into each veterinary

visit. Because most veterinarians never received education in veterinary school about feline behavior, and do

not have the time and resources to study all the latest

research and develop behavior protocols, the panelists

have worked to develop a concise, updated and “user

friendly” document that can be easily implemented.

The guidelines include the following information:

• Emphasis is on prevention, from pre-adoption or the

first veterinary visit, through senior life. Preventing

behavior problems should be an important part of total

wellness care. A list of behavior questions intended for

inclusion in the medical history questions used at each

appointment is provided to aid in early detection and

intervention of behavior problems.

• An outline is provided for guidance regarding how to

create realistic expectations about living with a cat. This

will encourage cat owners to provide positive outlets to

allow normal behavior, but in ways that clients will consider acceptable.

• Several of the appendices can be used for both prevention and treatment and can be made into client

handouts; these will delegate client education to the

veterinary support team and be used to facilitate the

veterinarian’s role in client education.

• A developmental table specifying home and veterinary

care needed at different stages of life is included. This

can serve as an excellent poster or client information

handout to help clients understand their responsibilities for home and veterinary care.

• Detailed information on behavior and environmental

enrichment is included to help prevent many of the

most common behavior problems.

• Suggestions regarding prevention and treatment of

obesity, the most common consequence of domestication of cats, are provided.

• To help veterinarians better handle routine behavior

concerns (eg, inappropriate elimination) a rational first

approach to the problems seen day-to-day is included.

• Behavior counseling and treatment, including behavior

modification and environmental enrichment, are discussed in detail. For cats needing medical treatment,

important drug information including dosing and

tapering of medication is provided. Information on

where to refer if needed is also provided.

• Information is provided that will promote comprehensive, state-of-the-art, holistic care that incorporates

both the physical and psychological well-being of our

feline patients.

• These guidelines will help veterinarians raise client

awareness that they should turn to the veterinary profession for advice regarding behavior, just as they do

with any medical concerns.

How does the scientific method attempt to reduce observer bias when explaining natural phenomena?

Answers

Explanation:

The scientific method is focused on experiments to prove/disprove a hypothesis.

A number of experiments start with a question;example/ what caused mold to grow on human skin?

this is when u organize a "control group,"

( recieving a placebo, or told information they have to follow).

your second group, gets a medication or a scenario to prove the hypothesis is true or false.

once both sides document their findings, scientists discuss which one is true..

What does the information in DNA molecules provide instructions for?
a. Assembling amino acids into protein molecules

b. Assembling protein molecules into amino acids

c. Rearranging genes into protein molecules

d. Rearranging genes into traits

Answers

Answer: (B)

Explanation: DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.

etermine the amount of rock left for the following isotopes:
a) Carbon-14 has a half life of 5,730 years. A fossil sample taken from the Earth shows that
a sample that started with 850 g of C-14 now has 53.125 g. How old must this organism
be?

Answers

Carbon 14 will go through 4 “half lives” in order to go from 850g to 53.125g. This means that Carbon 14 will be 22,920 years old.
*In order to find the mass of a half life we just divide the mass by 2 to get its half.

A farmer has grown strawberries successfully for years in field A. He recently expanded the crop into previously unused land in fields B and
C. The yield from field B is comparable to A, but the yield from field C is inexplicably low. As a microbiome expert, what might you predict
about the soil of fields A, B, and C?

Answers

Given what we know, we can confirm that the soil in field C most likely lacks the presence of microbes that help plants grow or has a higher presence of microbes that are harmful to plant growth.

What does it mean for a microbe to promote plant growth?

This would mean that the microbe in question has a symbiotic relationship with plants. Meaning that it promotes plant growth in exchange for nutrients from the plant, and both organisms will benefit, similar to microbes such as AM fungi.

Therefore, we can confirm that the soil in field C is likely to lack plant symbiotic microbes that are most likely found in fields A and B.

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Question 35
1 pts
s
What is the main difference between natural selection and
selective breeding? in selective breeding
humans allow nature to control the reproduction of species
humans choose plants or animals for reproduction
the strongest will survive and have more offspring
the organisms with the most genetic variation will reproduce

Answers

Answer:

humans choose plants or animals for reproduction

Explanation:

This can be seen in the farming industry with livestock and crops alike. Crops are usually chosen for a genetic resilience (like to arid, dry areas) and are reproduced with intervention from humans. This doesn't happen in the wild, therefore it is natural vs the unnatural and purposeful human intervention.

Why is it necessary to have positive and negative controls in this experiment?

Answers

Answer:

It is necessary to have positive and negative controls in an experiment to ensure that the results are due to the independent variable.

Explanation:

I hope it will help you

A B-cell uses its surface antibodies as receptors to attach to specific antigens before they are taken in. By what mechanism does a B cell engulf an antigen

Answers

Answer:

[tex]\huge\boxed{\sf Endocytosis}[/tex]

Explanation:

B-cells engulf an antigen by endocytosis.

Endocytosis:

The process by which cell takes up external materials by fusing them with plasma membrane is called endocytosis.

After engulfing the antigen, B-cells become sensitive to the pathogen.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

POSSIBLE POINTS: 2
The image shows a nucleotide, a building block of the DNA molecule. Label the components of a nucleotide

Answers

The answers are:

The blue building block - Phosphate group

The grey building block - 5- carbon sugar

The green building block - nitrogenous base.

Outside the green building block - Adenine

Information from the taste buds travels to an area of the.

Answers

Information from the taste buds travels to an area between the frontal and temporal lobes of the brain. -It registers in an area not far from where the brain receives information from our sense of smell, which interacts with taste.

Information from the taste buds travels to an area of the frontal and temporal lobes of the brain.

What are taste buds?

Taste buds are present in the tongue. They are responsible for the taste of whatever we eat. Taste buds are of different types. Like bitter, sweet, salt, and sour. They are different taste buds and are present in the different regions of the tongue.

The frontal and temporal lobe of the brain is responsible for the taste of food and other things. The frontal lobe is present in the frontal part of the brain, and the temporal lobe is on the side of the brain above the ears.

Different lobes of the brain are responsible for different works of the body.

Therefore, the frontal and temporal lobes of the brain get information from the tongue.

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#SPJ2

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Mangrove pneumatophore roots _______. A. Prop the trees up above the water line b. Excrete excess salt c. Absorb carbon dioxide from the air d. None of the above Please select the best answer from the choices provided A B C D. GRADUATION In Grade 12 class of 100 students, 91 went to the Grade 12 graduation. If two people are chosen at random from the entire class, what is the probability that at least one of them did not go to graduation? Convert all of the following lengths to millimeters.A. 12 cm = ___ mmB. 5 inches = ___ mmC. 1 yard = ___ mmD. 1 meter = ___ mmE. 10 feet = ___ mm need help plz ............................................ . Imagine a study in which you will visually present participants with a list of 20 words, one at a time, wait for a short time, and then ask them to recall as many of the words as they can. In the stressed condition, they are told that they might also be chosen to give a short speech in front of a small audience. In the unstressed condition, they are not told that they might have to give a speech. What are several specific things that you could do to standardize the procedure Choose a piece by Vasarely and discuss how he uses contrast in his design using specific examples. Make sure you list the work of art as well. please help this is for my son and i dont know it Who benefit and who suffered from the naturalization act of 1790? how many days are in 12,000 centuries A bird of species A, when diving, can travel six times as fast as a bird of species B top speed. If the total speeds for thesetwo birds is 259 miles per hour, find the fastest speed of the bird of species A and the fastest speed of the bird of species B.What is the fastest speed of the bird species B in miles per hour and the fastest speed of the bird of species A in miles per hour 6x4=26 what is the answer Solve the following HELP ME AHHHHHBased on results from recent track meets, Lynda has a 51% chance of getting a medal in the 100 meter dash. Estimate the probability that Lynda will get a medal in at least 5 of the next 10 races. Use the random number table, and make at least 10 trials for your simulation. Express your answer as a percent.43753 21159 16239 50595 62509 61207 86816 29902 23395 7264083503 51662 21636 68192 84294 38754 84755 34053 94582 2921536807 71420 35804 44862 23577 79551 42003 58684 09271 6839619110 55680 18792 41487 16614 83053 00812 16749 45347 8819982615 86984 93290 87971 60022 35415 20852 02909 99476 4556805621 26584 36493 63013 68181 57702 49510 75304 38724 1571206936 37293 55875 71213 83025 46063 74665 12178 10741 58362 a: 0.5% b: 50% c: 150% d: 0.55% Which statement correctly identifies old faithful and explains how it formed? A.it is a caldera formed from a vent collapsing B.it is a mud pot formed from pools of boiling, acidic mud. C.it is a volcanic neck that formed as a result of magma that never erupted. D.it is a geyser thAt formed due to water heated by magma erupting at earths surface. Tysm!!!! You just adopted a puppy and want to teach it to fetch the newspaper. What approach would B. F. Skinner advise you to take which examples are relative location?1. The center of Minnesota is about 45 degrees north, 93 degrees west. 2. Minnesota borders Canada3. We met 5 miles north of the rest stop.4. The Prime Meridian runs through Greenwich, England. debate male child are more useful than female in the home What would happen if there is no public services? Q1: What are some similarities in the way these insects produce sounds and the way instruments produce sounds? HELPPPP!! give me answerrr! and draw it on the diagram.