What is the main job of the cell membrane ?

What Is The Main Job Of The Cell Membrane ?

Answers

Answer 1
I think it’s B for sure

Related Questions

What would happen if RNA polymerase is unable to bind to the DNA molecule?

A. DNA replication will begin

B. Transcription of proteins would begin

C. Transcription would be blocked and no proteins will be made

D. The repressor protein will begin transcription​

Answers

Answer: Transcription would be blocked

Explanation:

Answer:

C. Transcription would be blocked and no proteins will be made

Explanation:

If RNA polymerase is unable to bind to the DNA molecule, the transcription would be blocked and no proteins will be made.

NEED HELP FOR 100 POINTS AND BRAINLIEST PLEASEEE
THE FIRST SLIDE they are refering to is the punnett square and

punnett square = from left to right and top to bottom is BB, bB in the top and bottom is Bb and bb
B = brown, b = blonde)

Answers

Answer:

this is assuming brown eyes are dominant

6a 9/16

b.3/16

c 3/16

d. 1/16

Explanation: there might be an easy way to calculate it but I draw it out and use the dominance and lettering and just count I used slide 5 as a starting point

to do more than this would require seeing the square on slide 1 they are referring to as it is specific to 2 parents

4. a Bb and bb

b. bb and bb

5. BBEE BBEe BbEEBbEe

BBEe BBee BbEe Bbee

BbEE BbEe bbEE bbEe

BbEe Bbee bbEe bbee

2 a Bb

b Brown hair

c. Bb and brown hair

d. blonde hair

e. BB

3. A50%

c. 50%

25%

75%

25%

PLSSS HELPPPPP
What is the difference between a food web and a food chain?​

Answers

A food chain is a linear representation of the energy going through organisms while a food web shows multiple connections between the organisms.

Brainliest to whoever helps :)

Mutualistic fungi can be best exemplified by which of the following

A) athletes foot fungus absorbing nutrients from cell

B) bread mold reproducing to cover a slice of bread

C) fungi and plant roots cooperating to meet their needs

D) mushroom fruiting bodies sprouting from tree roots

Answers

I think it’s B because it looks fimilaor

Answer:

C) fungi and plant roots cooperating to meet their needs

Explanation:

This is the correct answer. A mutualistic relationship requires both organisms to benefit from the relationship, every answer except C involves only one organism receiving benefit. C properly demonstrates a mutual relationship where they both benefit.

Approximately 75% of the Earth's surface is covered in water. Why is water considered such a precious resource?

Answers

Answer:

Water is precious since it is one of the most basic commodities that sustain the life of human beings, animals and plant. Without water, it would be impossible for any form of life to exist in the universe. Close to 75% of the Earth is covered with salt water, while 2% of the surface contains frozen water.

Explanation:

Why is water a precious resource?

It is needed for all living things and must be managed well to ensure we have enough for our needs and to protect our environment. Water is a precious resource. We can't live without it. Clouds formed by this vapor ensure that water falls back down to Earth as rain, sleet, snow or hail.Water resources are sources of water that are useful or potentially useful to humans. It is important because it is needed for life to exist. Many uses of water include agricultural, industrial, household, recreational and environmental activities. Virtually all of these human uses require fresh water.

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spicy angryhe's watching Grey's ​

Answers

Answer:

Huh? Just huh. simply huh.

A diet high in fat would help someone with PDCD. This is most likely because fatty acids can what ?

Answers

Answer:

This is because fatty acids can be made directly into acetyl CoA

Explanation:

I took the test!

Will give brainliest
How does population density/caring capacity?

Answers

Answer:

The more the people in a city, the less capacity there is because there needs to be enough space and resources for everyone.

Explanation:

what is meaning of pneumonoultramicrosopilicovolcaconiouses​

Answers

Answer:

a lung disease caused by breathing in very small pieces of ash or dust

Explanation:

bacteria that have had a human gene for insulin inserted in them are used to manufacture.the drug of diabetics

Answers

Human insulin is grown in the lab inside common bacteria. Escherichia coli is by far the most widely used type of bacterium, but yeast is also used. Researchers need the human protein that produces insulin.

I’ll mark brainiest if your right need ASAP

Answers

Answer:

The second one, smooth shape is dominant and wrinkled is recessive

Explanation:

Answer:

The answer would be B

Explanation:

The wrinkly pea is recessive meaning it is less likely to pass on its traits.

The sedimentary
rock gypsum is so
soft because it is
composed of clay
particles that
settled in slow-
moving water.

True or False

Answers

True


Why is gypsum so soft? Because it is deposited in this environment, it is common for gypsum to be associated with rock salt and sulfur deposits. Sedimentary gypsum is the gypsum that is mined commercially. Gypsum is very soft at 2 on the Moh scale of hardness – so soft that it can be easily scratched with a fingernail.

help pls :) i need a unique answer that isn’t plagiarism

Answers

I think thats because small animals have small body that can hide in a safe place. Like example if small animals hide go down to the earth, and the meteorite hit the earth, they will safe down to the ground.

Not like larger animals, they can only hide up he surface and when the meteorites came, they died.

Also some small animals such as cockroaches have ability to adapt to changes.

What molecule was theorized to give rise to many of the important bio molecules that we see 1 point
are important to life today?
A)protein
B)amonia
C)RNA
D)fats

Answers

Answer: C) RNA
......

The atmosphere of the early Earth
A) had lots of oxygen
B)had almost no oxygen
C)was full of birds
D)had no carbon dioxide

Answers

Answer:

A

Explanation:

The atmosphere is almost like 20 percent oxygen so definitly A

The circled portion of DNA labeled X in the following picture is a
a phosphate group
b sugar
c nucleotide
d aldehyde base

Answers

Answer:

a. Phosphate group

Explanation:

The circled portion of the DNA labeled X is ; ( C )  Nucleotide

The Nucleotide in a DNA molecule is the building block of the nucleic acid and it consists of a sugar molecule, A phosphate group ( P ) and nitrogenous base like adenine, cytosine or guanine.

The circled portion covers a nitrogenous base ( cytosine ), a phosphate group and a sugar molecule therefore the circled portion correctly represents a Nucleotide in a DNA molecule.

Hence we can conclude that the circled portion of the DNA is Nucleotide.

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Help fast! The diagram shows the process of making recombinant DNA and using it to transform a bacterial cell. The recombinant DNA is made by inserting a human gene into a bacterial plasmid. Note that the plasmid contains several genes for antibiotic resistance, including ampr, tetr, and ori.

Which is the most likely purpose of the transgenic bacteria that are engineered by this process?

A.) developing new drugs to fight antibiotic-resistant bacteria
B.) removing traits of antibiotic resistance from bacteria populations
C.) using bacteria to produce large quantities of a human protein, such as growth hormone
D.) developing bacteria for use in gene therapy

Answers

Answer:

D.

Explanation:

A person'a blood type depends on the type of protein market, called an ___, found on the cell membranes of the red blood cells.

Answers

i believe it is antigens

Question 1
The seed of a plant is an important adaptation to life on land, because:

Answers

Answer: grows and produces oxygen to all living things bye idfk

Explanation:

Which of the following is NOT a step of cellular respiration?
a. glycolysis
C. electron transport chain
b. Krebs cycle
d all of the above are steps of cellular
respiration
Please select the best answer from the choices provided

Answers

D.all of the above are steps of cellular respiration

The stages of cellular respiration include  the following such as glycolysis,

electron transport chain and Krebs cycle.

Cellular respiration involves the various reactions done in cells of organisms

in order to ensure that chemical energy derived from food and other sources

are converted into ATP.

Cellular respiration involves processes such as glycolysis,

electron transport chain and Krebs cycle. Other processes however include

electron transport chain and phosphorylation.

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plant breath through

Answers

Answer:

Plants respire through plant pores, called stomata. During respiration and photosynthesis, gases go in and out of the plants through stomata using diffusion, not breathing.

Answer:

respiration

Explanation:

Plants breathe through a process called respiration, where they exchange gases between the outside and the inside of their bodies as a living organism. They breathe through openings called stomata. Photosynthesis makes a plant produce oxygen, but a plant also requires oxygen constantly.

List down the major actions that lead daughter cells to be different from parents cells meiosis?

Answers

Answer:

The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.

Explanation:

what is soul erosion​

Answers

Answer:

erosion is the action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location. Erosion is distinct from weathering which involves no movement. 

Soil erosion is a naturally occurring process that affects all landforms.

hope this helps! :)

Stage 1: What is a property of a gas? PLEASE HELP!!
A Molecules are separated and far apart and move independently from each other
B Molecules slide past one another
C Molecules vibrate in place

Answers

Answer:

A.

Explanation:

B. is liquid and C. is for solids.  Gas molecules are relatively very far apart when compared to liquids and solids.

The top two human activities that threaten the habitats of endangered species globally are:


a.) Over-exploitation and agriculture


b.) Urban development and invasion of non-native species


c.) System modification and war


d.) Pollution and climate change

Answers

Answer: D

Explanation:

A model showing two possible arrangements of chromosomes during meiosis is shown in Figure 1.Figure 1. Two possible arrangements of chromosomes during meiosis

Which of the following questions about genetic diversity could most appropriately be answered by an analysis of the model in Figure 1?
A) Does crossing-over generate more genetic diversity than the fusion of gametes does?

B) Does DNA methylation prevent independent assortment during metaphase II?

C) How does the independent assortment of the two sets of homologous chromosomes increase genetic diversity?

D) Do daughter cells that are not genetically identical to parent cells produce viable zygotes?

Answers

The answer is C) How does the independent assortment of the two sets of homologous chromosomes increase genetic diversity?

C) How does the independent assortment of the two sets of homologous chromosomes increase genetic diversity?

What is independent assortment?

Independent assortment is a mechanism that contributes to genetic diversity during meiosis. It refers to the random alignment and separation of homologous chromosomes during the first meiotic division (meiosis I), which leads to different combinations of chromosomes being passed on to the daughter cells.

This means that each daughter cell will have a unique combination of chromosomes. When the gametes (sperm or egg cells) produced by meiosis fuse during fertilization, they can give rise to offspring with a unique combination of genetic information, further increasing genetic diversity within a population.

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What characteristic do all protists have in common?

Answers

Mostly a challenge to overcome

Answer:

they all make or consume food .

Explanation:

just took a test

Question 5
Where do new adaptations come from? There is more than one correct answe
choose all that apply!!
New combinations of genes from the parents
Nature will give an organism the adaptations it needs to survive
An organism can choose to grow an adaptation
Mutations in the DNA passed on to an organism

Answers

Answer:

new adaptations come from:

New combinations of genes from parents.

Mutations in the DNA passed on to an organism.

Explanation:

Mutations in the DNA passed on to the organism and bring adaptations in the form of new characteristics. mutations may b lethal or fruitful and develop new characteristics in an organisms and increase its survival.

new combinations of genes from parents results from crossing over and recombination. these new genetic combinations bring adaptations.

Select all of the following genotype that is/are a heterozygous genotype
A( AA
B( Aa
C( aa
D(Zz
E( zz

Answers

Answer:

B, D

Explanation:

B and D sorry if the answer is incorrect

Explain why two siblings except identical twins have the exactly the same alleles

Answers

Answer:

having exactly the same DNA sequences, twins start accumulating genetic variation from the earliest stages of development, researchers at Iceland-based company deCODE genetics found, meaning that one twin harbors variants that aren't present in the other.

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