2. What is the function of the cell membrane?

Answers

Answer 1

Answer:

it protects the cell. it act as a receptor. it regulates the transport of substancesit receives chemical messenger from other cells.

Related Questions

Can somebody help me ASAP please! I’m timed!

Answers

Carbon 14 has a half life that is much longer than potassium.
it’s carbon -14 decays very quickly

In binomial nomenclature of organisms, every species name includes two words. The first word is the name of the _______.

Answers

Answer:

genus

Explanation:

Read the following claim. Life on Earth could not exist without decomposers. What evidence from the article supports this claim? Explain why the evidence supports this claim.

Answers

Answer:

Explanation:

It's hard to distinguish facts/ evidence from the article with only the statement ' Life on earth could not exist without decomposers', but taking that into consideration, it's best if you breakdown the information so you properly understand what it means.

Life on earth - refers to evolution of life on earth such as single celled organisms, eukaryotes, prokaryotes, bacteria and so on

could not exist - refers to the inability of it being there, it's presence is basically there/ not there

decomposers - is an organism that breaks down organic materials from dead organisms to obtain energy such as fungi, bacteria, worms and so forth.

You basically need to relate all the information you find in the 'article' to the statement they have made and which i have broken down for you above.

Answer:

The other person is correct.

Explanation:


If Scientist were studying plant growth of plants both on Earth and in Space, which of the following would not be
a control?

Answers

Answer:

The study of the growth of plants in space would not be controlled

Which is an example of competition within a species?
O A. a pack of hungry wolves hunting prey
B. a cougar showing her cub how to hunt
Oc male elk fighting in a display of dominance
OD. plants in a dense forest struggling for sunlight

Answers

Answer: A
Explanation: they are hungry so they are going to fight over their food

Can you help me please i will give you a branlist and it’s science

Answers

Answer:

B.

Explanation:

I think it's because protons are the ones that circle, neutrons stay in the middle becuz they're neutral, and electron are negatively charged?

The Moon completes one orbit around the Earth in approximately _______ and completes one cycle of its phases in approximately _______.

Answers

Answer:

It takes 27 days, 7 hours, and 43 minutes for our Moon to complete one full orbit around Earth. This is called the sidereal month, and is measured by our Moon's position relative to distant “fixed” stars. However, it takes our Moon about 29.5 days to complete one cycle of phases (from new Moon to new Moon).

Explanation:

What ocean characteristics does sonar help to study?​

Answers

Answer:

Sonar, short for Sound Navigation and Ranging, is useful for investigating and planning the sea since sound waves travel farther in the water than do radar and light waves

Explanation:

the white blood cells stops the infections before it can infect the body ?

Answers

Answer:

The answer to the question is true

Yes, Your white blood cells account for only about 1% of your blood, but their impact is big. White blood cells are also called leukocytes. They protect you against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health. When your body is in distress and a particular area is under attack, white blood cells rush in to help destroy the harmful substance and prevent illness.

Hope that helps!!

What are the two ways to deal with pollution, and which is more effective?

Answers

Answer:

Reduce the number of trips you take in your car.

Reduce or eliminate fireplace and wood stove use.

Avoid burning leaves, trash, and other materials.

Avoid using gas-powered lawn and garden equipment.

Explanation:

It depends on you're opinion honestly but i hope it helps!

What organisms are at the bottom of the food chain?

Answers

Answer:

Photosynthetic organisms (plants and/or phytoplankton) are at the bottom of the food chain.

Explanation:

Ones that get there energy from the sun like plants and such

amino acid is to protein as

Answers

Answer:

Nucleotides are to Nucleic acids

Explanation:

This is a part to whole analogy, one makes the other.

Which cell type undergoes terminal differentiation?
A-epithelial cells
B-stem cells
C-heart cells
D-hair cells

Answers

Stem cells are the cell type that undergoes terminal differentiation.

STEM CELLS:

Stem cells are cells in animals that are capable of differentiating into any cell type.

Differentiation of a cell implies that the cell becomes more specific in its function.

Stem cells undergo mitotic division to produce one daughter cell that is a stem cell and another daughter cell that has differentiated.

Stem cells undergo terminal differentiation into specific cell types such as epithelial cells, muscle cells, heart cells, hair cells, blood cells etc.

Therefore, stem cells are the cell type that undergoes terminal differentiation.

Learn more at: https://brainly.com/question/11161299?referrer=searchResults

Which statement is true? (1 point)
Punnett squares are used to predict the most likely allele combination of a genetic combination.
Punnett squares are used to predict all possible allele combinations of a genetic combination.
Punnett squares are used to predict dominant allele combinations of a genetic combination.
Punnett squares are used to predict recessive allele combinations of a genetic combination.

Answers

Answer:

Punnett squares are used to predict all possible allele combinations of a genetic combination

Explanation:

The person above is right

Punnett squares are used to predict all possible allele combination of a genetic combination. Therefore, option (B) is correct.

What is a punnett square?

The Punnett square is a diagram in the form of a square that is utilized for the purpose of predicting the genotypes that will result from a specific cross or breeding experiment. Reginald C. Punnett, who came up with the method in 1905, is honored with the naming of this technique. The diagram is utilized by biologists so that they can calculate the likelihood of a future generation inheriting a particular genotype.

A Punnett Square is a useful tool that helps to predict the variations and probabilities that can result from cross breeding. This can be done by comparing the offspring of two different species. This includes the estimation of the likelihood of sexually reproducing humans, animals, and plants.

Learn more about punnett square, here:

https://brainly.com/question/27984422

#SPJ2

You use
friction when you leave marks on paper with a
pencil “lead."

Answers

Answer:

Yes, this is true

Explanation:

I hope I helped.

Meningitis is a disease that is characterized by swelling of the meninges that puts pressure on the brain. Which is
least likely to be a symptom of this disease?
severe headache
O swollen ankles
sensitivity to light
O confusion

Answers

Severe headache is symptoms of meninges. thus option A is correct.

What is meningitis disease and how it caused?

Meningitis is an infection of the protective membranes that surround the brain and spinal cord (meninges). It can affect anyone, but is most common in babies, young children, teenagers and young adults. Meningitis can be very serious if not treated quickly. Meningitis is usually caused by a viral or bacterial infection.

Some common symptoms of meningitis:-

Sudden high fever.

Stiff neck.

Severe headache that seems different from normal.

Headache with nausea or vomiting.

Learn more:

https://brainly.com/question/7001959

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Phenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs that stop seizures from happening. These drugs work by inhibiting electrical impulses (action potentials) from occurring. Explain the importance of sodium and calcium channels on a neuron and and the reasons why action potentials do not occur when these channels are inhibited

Answers

Answer:

Phenytoin and ethosuximide are drugs that slow the recovery of the sodium channel during the inactivated state.

That is to say, they prolong the inactivation state of the channel, thus generating that in this way the neuron remains in resting potential and the action potential causing the epileptic attack is not triggered.

On the other hand, these drugs, according to the bibliography of the book "Golan, 3rd Edition, Principles of Pharmacology" have a use-dependent affect capacity, this means that those sodium channels that have more activity will be more affected, in this way Not only is epileptic shock avoided, but if the same happens independently in any neuron, it will not be able to propagate the action potential to its neighboring neurons, therefore the surrounding neurons will not be stimulated and will not be fulfilled. with the sudden rapid discharges that are the most dangerous in some cases of severe epilepsy.

It is important to understand that these drugs affect the ion channels responsible for exciting neurons, that is why by inhibiting them, a constant rest of these neurons is promoted, and they are unable to generate abrupt discharges and dissemination of the electric charge. among them generating epileptic shocks.

The ions in neurons are in charge of indicating or modulating the different neuronal states, if they are inactive, open or closed, they will directly affect the membrane potential, that is, the positive or negative charge of the neuron's membrane.

Explanation:

In order to finish completing the question, these drugs are excreted through the p450 protein, that is why if this excretion system becomes saturated because another drug is consumed that is excreted in the same way, these antiepileptics will remain longer in use. blood and in the body, generating a greater effect and enhancing adverse effects on the central nervous system.

Question 6
How many
extrinsic eye muscles control each eye in a cow?
O 12
6
O 5
4

Answers

Answer:

12 jdjdjmrmrkkdmmuscles

Answer:

4

Explanation:

Cows have only four muscles that control their eyes. They can look up, down, left, and right, but they can't roll their eyes like you can.

How many grams of solute are needed to make 250 mL of a 2.055 M NaCl solution?
30 grams
76.7 grams
300.081 grams
58.44 grams

Answers

Answer:

30grams

Explanation:

To calculate the mass (number of grams of the solute) in the solution, we need to calculate the number of moles it contains first. We use the formula;

M = n÷ V

Where; M= Molarity or Molar concentration = 2.055M

n= number of moles= ?

V= Volume = 250mL

Volume in L is 250/1000 = 0.250L

n= M × V

n= 2.055 × 0.250

n= 0.51375moles

The mass is calculated using :

Mole (n) = mass (m) / molar mass (MM)

Molar mass of NaCl = 23 + 35.5

= 58.5g/mol

Mass = molar mass × mole

Mass = 58.5 × 0.51375

Mass = 30.0543

Therefore, the mass is 30grams

Is this equation balanced or unbalance? 2NaOH + H2SO4= Na2SO4+ H2SO4

Answers

Answer:

2NaOH + H2SO4 → Na2SO4 + 2H2O is the balanced equation so 2NaOH + H2SO4= Na2SO4+ H2SO4 is not a balanced one

7. Shivering is one way to maintain a stable external environment.

TRUE or FALSE ?​

Answers

Answer:

True!

Explanation:

I hope it helped you!!

Help me plz !!!! A cat that weighs 55 N sits on the top of a cat tree. It is 2 m above a 110 N
dog. How does the mass of the animals relate to the force of gravity on
them?
O A. The mass of the 55 N cat is greater than the mass of the 110 N
dog.
B. The 55 N cat has less mass than the 110 N dog.
C. The 55 N cat has the same mass as the 110 N dog when it is in
the cat tree.
O D. The mass of the 55 N cat will be the same as the mass of the 110
N dog after it jumps to the ground.

Answers

Answer:

B. The 55 N cat has less mass than the 110 N dog.

Explanation:

Weight of an object refers to the product of its mass and the force of gravity. However, the greater that mass of an object, the greater the weight of that object.

In this case, the cat's weight is 55N while the dog's weight is 110N. This means that the dog has a greater mass than the cat or alternatively put, the 55 N cat has less mass than the 110 N dog.

Note that: if the gravitational effect is removed, the cat will contain lesser mass.

Answer:

B

Explanation:

which printer
uses light to create
Impressions on paper​

Answers

Answer:

An LED printer is a type of computer printer similar to a laser printer. Such a printer uses a light-emitting diode (LED) array as a light source in the printhead instead of the laser used in laser printers and, more generally, in the xerography process....

Hope it helps you....

Thanks....

It’s laser printers are used to light to create impressions on paper. It was used a lot especially back then

When heating substances in a test tube, always

Answers

Answer:

point the open end of the tube away from all the people.

help please!!! hurry! thanks

Answers

Muscle contraction is the activation of tension-generating sites within muscle fibers. In physiology, muscle contraction does not necessarily

What kind of quantity is distance

Answers

Answer:   scalar quantity

Explanation:

The answer you are looking for is scalar quantity. Hope this helps.

Brainliest please? :)

If you have a 20% sugar solution and a 45% sugar solution how does the 20%
solution compare to the 45% solution?

Answers

Answer:

It is 25% less

Explanation:

That is all i can say

A close comparison of the 20% solution to the 45% solution shows that the 20% solution is actually less than 50% of the 45% solution.  

Arithmetically, you discover that the 20% solution is 25% or 0.25 (45% - 20%) less than the 45% solution.

Comparatively, you can compute that the 20% solution actually represents 44.4% or 0.444 of the 45% solution (20% x 45%). The same result can be obtained by first dividing 20% by 45% and then multiplying the resulting dividend by 100.

Thus, the result of the comparison shows that there is more sugar in the 45% solution than there is in the 20% sugar solution.

Link to similar question on the comparison of percentage-based solutions at https://brainly.com/question/19616550

what is geocentric mean

Answers

Answer: Having or representing the earth as the center, as in former astronomical systems.

Explanation:

measured from or considered in relation to the center of the earth

Answer:

There are 2 meanings to geocentric. 1. having or representing the earth as the center, as in former astronomical systems.  2. measured from or considered in relation to the center of the earth.

Explanation:

number 2 is most common meaning

. As the volume of the cell increases, how does the surface area to volume ratio (SA/Ve) change?

Answers

Answer: Well, you see, As the cube size increases or the cell gets bigger, then the surface area to volume ratio - SA:V ratio decreases. ... When a cell grows, its volume increases at a greater rate than its surface area, therefore it's SA: V ratio decreases.

Explanation:

Can you help me science

Answers

Answer: the nucleus

Because it contains protons and neutrons whose mass is too much when compared to electrons.

Hope this helps ʕ•ᴥ•ʔ
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