describe the two types of external growth factors

Answers

Answer 1

Answer:

Chemical and physical signals

Explanation:

Growth factors - proteins that stimulate cell division

(Most mammal cells form a single layer in a petri dish and stop dividing when they touch other cells.)


Related Questions

which statement explains one way that minerals form? o they are mined from rocks. o they are produced from molten minerals. o they are grown in a laboratory. o they are washed up on a seashore. HURRY IM TIMED!!!!!!!!

Answers

Answer:

I believe is They arecrystaluzed from a solution

Explanation:

Answer:

B. they are produced from molten minerals

Explanation:

I WILL MARK BRAINLEST​

Answers

Well I mean microscope
Microscope

An electron microscope can be used to magnify things over 500,000 times, enough to see lots of details inside cells. There are several types of electron microscope. A transmission electron microscope can be used to see nanoparticles and atoms

Assessment
hoice. Choose the letter of the best answer. Write the chosen letter on a
heet of paper.
makes planet Earth different from the other planets in the sola
m?
It supports life.
C. The atmosphere holds gases.
.
It is mostly covered in water. D. All of the above​

Answers

Answer:

D. all of the above

Explanation:

brainliest?

C is the correct response to the question

The nervous system includes the brain. At what level of organization is the brain?
A.Cell
B.Tissue
C.Organ
D.Organ system

Answers

Answer:

C. Organ

Explanation:

The Brain is an organ.

Which molecule would be the most affected by limited nitrogen?

Answers

Answer:

The myofibrillar proteins

Explanation:

Read and understand the questions and answer based on the instructions given.
A. True or False. Write TRUE if the sentence is correct, otherwise, write FALSE.

1. Wash the funnel, stir stick, blender lid, and other removable parts of the blender with liquid soap
and water
2. Wash all the removable pieces of the food processor in cold water with a strong dish soap.
3. Wipe up stethoscope starting at the bell and diaphragm, tubing, and up to the earpieces.
4. Inspect tools, equipment, and paraphernalia if there is any significant risk.
5. Use very detailed explanation on the assessment of the tools, equipment, and paraphernalia.


PLEASE HELP NEED KONAPO​

Answers

True true false false

What role does photosynthesis play in the flow of energy through ecosystems?

1.) It converts sunlight into chemical energy

2.)It uses ATP

3.)It converts chemical energy into carbon dioxide

4.)all of these

Answers

Answer:

It converts chemical energy into carbon dioxide

Explanation:

Answer:

1. It converts chemical energy into carbon dioxide

Explanation:

Plants need oxygen and it turns it into chemical energy then the chemical energy turns it into carbon and the cycle repeats!

Hope I helped if I did please give me brainiest!

Which of the following statements is/are true with regard to a polymer of 6 glucose molecules?

I. The chemical formula is C36H72O36

II. The chemical formula is C36H62O31

III. The monomers of glucose were joined via hydrolysis

IV. The monomers of glucose were joined via dehydration synthesis

Answers

Answer:

Statement 'IV' is correct

Explanation:

Glucose molecules are joined together through condenstation/ dehydration (loss of water) reactions.

The statement that is true with regard to a polymer of 6 glucose molecules is as follows:

The monomers of glucose were joined via dehydration synthesis.

Thus, the correct option for this question is D.

What is Glucose?

Glucose may be defined as a type of simple sugar known as monosaccharides. It bears a chemical formula [tex]C_6H_1_2O_6[/tex]. It is considered the main type of sugar in the blood and is the major source of energy for the body's cells.

Dehydration synthesis involves the reaction between two or more molecules of glucose with the continuous liberation or loss of water molecules. The chemical formula of glucose remains the same when there are six or more polymers that take place, the chemical formula never changes.

Therefore, the correct option for this question is D.

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A proton is
Which of the following completes the sentence above?
A
located in the orbital of an atom.
B
a part of an atom that does not have a charge.
C
a part of an atom that can lose an electron and become negatively charged.
D
the part of an atom counted to determine the atomic number of an element.
westion 1 of 5
Run corint

Answers

Answer:

D the part of an atom counted to determine the atomic number of an element

D is correct. The number of protons defines the identity of an element.

meaning of condom ...........​

Answers

Answer:

something created by humans to stop humans from being made

Something that’s made to prevent sperm into the women’s private and it will prevent her from being pregnant.

Which is the final event that occurs when a star is forming?

The outer layer of the star expands.
Gravity pulls gas and dust together.
A black hole forms as the core collapses.
Nuclear fusion begins under high pressure.

Answers

Answer:

D. Nuclear fusion begins under high pressure.

Explanation:

A star is a giant astronomical or celestial object that is comprised of a luminous sphere of plasma, binded together by its own gravitational force.

Some of the examples of stars are;

Canopus.Sun (closest to the Earth)Betelgeuse.Antares.Vega.

Stars are typically made up of two (2) main hot gas, Hydrogen (H) and Helium (He). The chronological order in which the formation of a star occur are;

1. Gravity pulls gas and dust together to form dense cores.

2. A protostar forms as mass increases.

3. Nuclear fusion begins under high pressure.

Hence, the final event that occurs when a star is forming is that nuclear fusion begins under high pressure.

Answer:

Nuclear fusion begins under high pressure

Explanation:

I took it on edge

Whenever I see the word artichokes I feel nauseous and scratchy. I once ordered a pizza with artichokes and cheese on it. I have never been allergic to artichokes before. Soon after I began to feel itchy and suddenly saw bumps appearing on my midsection and arms. I called the doctor and talked to his nurse. She asked me if they were square or circular. I said they were square. She said I had hives and to take benedryl. - the sight of artichokes - feeling nauseous and scratchy from the allergic reaction - allergic reaction (hives) - feeling nauseous and scratchy from seeing an the word "artichokes" A. What is the CS? B. What is the UCS? C. What is the CR? D. What is the UCR?

Answers

I'm not sure what's the answer, but since I love helping I'mma try to help you out aha. But uh I think it's B. If I'm wrong I'm sorry :))

The artichoke is a huge, thistle-like perennial plant of the aster family (Asteraceae), often known as the globe artichoke or the French artichoke, and its flower buds are farmed for their gastronomic qualities.

The young bloom bud of a thistle is an artichoke. It is considered a vegetable in cuisine and is consumed as such. The plant, an aster, is plucked for its buds rather than its flowers. It takes some effort to get to the edible sections of an artichoke, which makes it a difficult vegetable to prepare.

What are some examples of UCS, UCR, and CS?

The chemotherapy medications are the unconditioned stimulus (UCS) in this scenario, the vomiting is the unconditioned response (UCR), and the doctor's office is the conditioned stimulus (CS) after being matched with the UCS and UCR.

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Mass will increase as..?

Answers

[tex]\huge\bold\red{ƛƝƧƜЄƦ:-}[/tex]

According to Newton’s second law of motion, applied force is directly proportional to the rate of change of momentum.

Momentum is basically the product of mass (m) and speed (v) of an object.

To Newton, this simply meant that if he pushes his triangular prism its speed will vary. Why speed and not mass? Because mass is constant, duh! At least that’s what everyone believed.

So far so good?

Now I ask you a question

What if I go on applying some force on an object?

Using Newton’s second law, the answer is: it’s speed goes on increasing;

which is absolutely correct!

And this result did not hurt anyone until Special Relativity came onto the main stage of Physics:

You see, the problem here is that according to Special Relativity the speed of light is the universal speed limit. No object can ever travel faster than light.

So what do we do now? We know for sure that Newton’s second law is correct.

As we know that force changes momentum: a product of mass and velocity. If velocity cannot be increased beyond “c” let’s increase the mass.

I’ll introduce something called the Lorentz factor here:

γ=11−v2c2√

applying this factor to mass:

m=m01−v2c2√

m0: is the rest mass

m = mass when the object is moving at velocity v

For v<<<c, the denominator is approximately equal to 1. However, if the speed starts getting really close to the speed of light (let's say 0.9c) the value of m gets huge.

Simply put, if the velocity increases, the object gets heavier thus making it difficult to increase its speed further.

And so, the object is never able to achieve the speed of light.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘꜱ❤
The speed of light ...........

WORTH 15 PTS!! WILL GIVE BRAINLIEST!! HELP!! DUE TODAY!!!
In the simulation I was given,
At first, I was a predator that was eating white and black peppered moths, on white bark.
Then, I was a predator eating white and black peppered moths, BUT on dark bark.

ANSWER TWO QUESTIONS,
Test variable (independent variable):
Outcome variable (dependent variable):

Answers

These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist. or tested in an experiment. For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants' test scores, since that is what is being measured. An independent variable is defines as the variable that is changed or controlled in a scientific experiment. ... Independent variables are the variables that the experimenter changes to test their dependent variable. A change in the independent variable directly causes a change in the dependent variable. Either the scientist has to change the independent variable herself or it changes on its own; nothing else in the experiment affects or changes it. Two examples of common independent variables are age and time. There's nothing you or anything else can do to speed up or slow down time or increase or decrease age. the experimenter changes or controls and is assumed to have a direct effect on the dependent variable. ... The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable. The variables in a study of a cause-and-effect relationship are called the independent and dependent variables.
The independent variable is the cause. Its value is independent of other variables in your study.
The dependent variable is the effect. Its value depends on changes in the independent variable. A test variable is a user-defined, name-value pair that stores and refers to information throughout a test and between tests. You can think of independent and dependent variables in terms of cause and effect: an independent variable is the variable you think is the cause, while a dependent variable is the effect. In an experiment, you manipulate the independent variable and measure the outcome in the dependent variable. used synonymously. used synonymously. However, they are not exactly the same: the outcome variable is defined as the presumed effect in a non-experimental study, where the dependent variable is the presumed effect in an experimental study. The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable. An example of a dependent variable is depression symptoms, which depends on the independent variable (type of therapy).
An independent variable, sometimes called an experimental or predictor variable, is a variable that is being manipulated in an experiment in order to observe the effect on a dependent variable, sometimes called an outcome variable.

12. Some viruses attack cells by inserting their own DNA into the host cells’ DNA. Why might it be simpler for these viruses to attack prokaryotic cells than eukaryotic cells A. Prokaryotic cells have less DNA than eukaryotic cells.
* B. 
The cell wall in prokaryotic cells is a less effective barrier.
* C. 
The rapid growth of prokaryotic cells generates more viruses.
* D. 
Unlike eukaryotic cells, prokaryotic cells do not have a nucleus.

Answers

Answer:

DNA in eukaryotic cells lie within the nucleus. This DNA has a membrane protecting it from the outside. This means that the virus would have a harder time getting to the DNA to insert its DNA in a Eukaryotic Cell.

I hope this is helpful somehow

Unlike eukaryotic cells, prokaryotic cells do not have a nucleus.

What are prokaryotic cells and eukaryotic cells?

Prokaryotes are organisms whose cells lack a nucleus and other organelles. Eukaryotic cells have a membrane-bound nucleus.

Eukaryotic cells have a separate organelle named nucleus (plural: nuclei) which is a double membranous structure meant for the storage of genetic material i.e. chromosomes (DNA). Prokaryotes on the other hand have an irregularly shaped structure named nucleoid instead of nucleus. All the genetic material of the prokaryotes is within the nucleoid. Unlike nucleus, nucleoid does not have any nuclear membrane & it is spread in the cytosol freely.

Hence, option D is the correct answer.

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PLZ HELP YA'LL Which terms correctly identify the indicated structures in this sketch of a cell viewed under a microscope? WHOEVER ANSWERS GETS BRAINEST 16 POINTS

Drag and drop a term to match each label.

A
B
C
D
E
F

Answers

A) Vacuole
B) Chloroplast
C) Cell Wall
D) Mitochondria
E) Peroxisome
F) Endoplasmic Reticulum

Answer:

A) Vacuole

B) Chloroplast

C) Cell Wall

D) Mitochondria

E) Peroxisome

F) Endoplasmic Reticulum

Explanation:

Landscapes that have been shaped largely by the dissolving power of groundwater are said to have________?

Answers

Answer:

Karst Topography

HOPE THIS HELPS ;)

Which of the following microscopes provide 3D images of samples?
a.
dissecting microscope and compound light microscope
b.
dissecting microscope and scanning electron microscope
c.
scanning electron microscope and compound light microscope
d.
compound light microscope and transmission electron microscope


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

The answer would be B: dissecting microscope and scanning electron microscope.

Explanation:

A fruit fly has black eyes. Having red eyes is a dominant trait (R) and having black eyes is a recessive trait (r).

Which describes the fruit fly’s genotype and phenotype?

genotype: black eyes
phenotype: Rr
genotype: black eyes
phenotype: rr
genotype: rr
phenotype: black eyes
genotype: Rr
phenotype: black eyes

Please try to hurry if possible. Thank you!

Answers

Answer:

Black eyes

Explanation:

Answer:

genotype: rr

phenotype: black eyes

Explanation:

100% sure itz c I took the test !!!!!

How long does your cerebrum take to fully develop?

Answers

Answer:

about nine mouths hope this helps

Explanation:

A student conducts an experiment to determine how the amount of water given to a plant affects its growth.
What is the independent variable for this experiment?
a the amount of water
b. the height of the plant
c. the amount of sunlight
d. the amount of soil
Please select the best answer from the choices provided

Answers

the amount of water, because it’s manipulated by the researcher

what is extrinsic control of heartbeat? In simple terms and examples please! ​

Answers

Search Results
Featured snippet from the web
Extrinsic controls of the cardiovascular system include neuronal, humoral, reflex, and chemical regulatory mechanisms. These extrinsic controls regulate heart rate, myocardial contractility, and vascular smooth muscle to maintain cardiac output, blood flow distribution, and arterial blood pressure.

for a scientist, assessing the validity of information requires...
A . specific knowledge
B. a hypothesis
C. experimentation
D. questions

Answers

C, Experimentation

Hypothesis would need to be tested using an experiment and the hypothesis is the general question.
Experimentation helps a scientist figure out whether or not their ideas, theories, and hypothesis are supported

Which step in the process of photosynthesis is dependent on light energy?
A.splitting of water into hydrogen and oxygen
B.combining carbon and oxygen into carbon dioxide
C.splitting carbon dioxide into carbon and oxygen
D.combining hydrogen and oxygen to form water

Answers

Answer:

D. Combining hydrogen and oxygen to form water.

Explanation:

The process of photosynthesis which is dependent on light energy is the

combining of hydrogen and oxygen to form water.

Photosynthesis involves the reaction between carbondioxide and water to

form Starch and oxygen. The water molecules however have to be split

because of movement of electrons in which the water become oxidized and

carbondioxide reduced.

This process however have to be done in the presence of sunlight which

serves as a precursor.

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Label the following with 1,2,3 for the Newton’s law represent by each description.

1=Newton’s first law
2= Newton’s second law
4= Newton’s third law

Answers

hey buddy how are y’all going home i was a way of getting the back

what would happen if glycosis stopped happening in a cell

Answers

Answer:

cells lose their ability to maintain their sodium-potassium pumps, and eventually, they die.

Explanation:

If glycolysis is interrupted, these cells lose their ability to maintain their sodium-potassium pumps, and eventually, they die. The last step in glycolysis will not occur if pyruvate kinase, the enzyme that catalyzes the formation of pyruvate, is not available in sufficient quantities

what do bactieria have in common with the cells of other living organism

Answers

Answer:

Bacteria have cytoplasm and ribosomes which are common with the cells of other living organisms. Some bacterias have whip-like which is flagellum which helps bacteria cells have prokaryotes which mean the DNA is not being held with the nucleus like cells of plants and animals.

Explanation:

Hope this helps u

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What type of receptors are used to sense pressure and touch on the skin

Answers

Answer: Mechanoreceptors

Explanation: These receptors perceive sensations such as pressure, vibrations, and texture.

Into which layer of the atmosphere are jet airplanes able to travel?
A. The stratosphere
B. The thermosphere
C. The mesosphere
D. The troposphere

Answers

A. The stratosphere

Answer:

stratosphere put A

Explanation:

How do organisms meet their needs and respond to threats in their environment?

Answers

Living organisms have some senses (sight, smell, touch, taste, etc) that help them to detect changes in their external environment, as well as their internal balance and respond to them.

Other Questions
on october 14, bob has $20on october 20, bob has $80if bob continues to save money at this rate, how much money will he have on october 23? Simplify.2(m + 11)2m + 112m + 2224m22m Compare and Contrast atoms and ions..Thanks for your help! tell me some facts about spain, family matters in spain, i have to write a paragraph for it. its for spanish 1 I NEED THIS ASAP!!!!! 3 QUESTIONS!!!! LETTERS ONLY!!!!!1. What is the name for the two-pronged siege attempted by General Montgomery and General Arnold that failed to capture the town? A. The Battle of Concord B. The Battle of Boston C. The Battle of Quebec D. The Battle of Bunker Hill2. Who was the British politician who argued against the Stamp Act in parliament? A. Benjamin Franklin B. Isaac Barr C. John Locke D. Thomas Paine3. Which of the following was a result of the Battle of Bunker Hill? A. The colonists won the battle B. The British were able to break the colonists seize on Boston C. British tactics became more aggressive D. The British suffered a large number of casualties "There is nothing that keeps wicked men at any one moment out of hell, but the meer pleasure of God. By the mere Pleasure of God, I mean his sovereign Pleasure, his arbitrary Will, restrained by no Obligation, hinder'd by no manner of Difficulty, any more than if nothing else but God's meer Will had in the least Degree, or in any Respect whatsoever, any Hand in the Preservation of wicked Menone Moment." - from "Sinners in the Hands of an Angry God," Jonathan Edwards, 1741 The purpose of Jonathan Edward's sermon as illustrated in this excerpt was to A) unify culturally diverse immigrants promote religious acceptance. B) promote the Christian religion by promoting peace, forgiveness, and unquestioned acceptance. C) provide support for the new cultures coming to the new world and the cultural blending that is taking place. D) warn or remind his congregation that the nation as a whole must repent their sins and ask forgiveness from God to escape hell. Help me please!!!!In a car race, for every mile covered by car A, car B covered 4 miles. The ratio of the number of miles covered by car A to the number of miles covered by car B is ___. 1 to 1 4 to 4 4 to 1 1 to 4 What is one of the ways in which a drug is excreted from the body?A. TearsB. SwearC. SinusesD. Breath Bill and Laura are in the 39.6% tax bracket for ordinary income and the 20% bracket for capital gains (ignore the 3.8% additional tax on investment income for higher-income taxpayers.) They have owned several blocks of stock for many years. They are considering the sale of two blocks of stock. The sale of one block would produce a gain of $15,000. The sale of the other would produce a loss of $19,000. For purposes of this problem, ignore personal exemptions, itemized deductions and other phase-outs. They have no other gains or losses this year.Required:a. How much tax will they save if they sell the block of stock that produces a loss?b. How much additional tax will they pay if they sell the block of stock that produces a gain?c. What will be the impact on their taxes if they sell both blocks of stock? After changing its format, a radio station lost 34% of its listeners. If there were an estimated 83.000 listeners originally, how many listeners does the radiostation have now? (WILL GIVE BRAINLIEST) Highlight all of the words that make up the dependent clause below. In the barn, where we keep the cows, there are pails for milking What is volume of the solids?What is the volume of liquids?what is the volume of gases?(NO COPY PASTE FROM WEBSITES)I WILL MARK U BRAINLIST IFU ANSWER ITTTTTTTit's science not english btw there is no section for science ;C Simplify 5/5A. 5B. 5C. 1D. 1 question from the four answer choices provided.2Question 11In a study of physical endurance, researchers observed significant increases in the heart rates and breathing ratesexercise.Which statement best explains the increase in the heart rate and the breathing rate during exercise?3AnswerAThe water concentration in the blood increases.BBody cells require increased oxygen as energy is expended.Muscle cells increase in temperature and require fluid to reduce the temperature.DAn increase in muscle activity causes increases in glucose levels in red blood cells.5Question 11Previous67 Which is the solution of the quadratic equation (4y - 3)2 = 12? I jus need help on the ounces please hellllllllllppppppppp meeeeee Write a thematic statement for The Medicine Bag: is this a function if is not tell why A word processing program would probably be used to