Most of the food and waste materials that move into and out of a cell pass through
A.receptor proteins.
c. enzymes.
b. marker proteins.
d. channel proteins.

Answers

Answer 1
Receptor proteins is a right answer

Related Questions

cyber ethics and law are same in nature true or false​

Answers

Answer:

True as a technonerd it is ive study it

Explanation:

Question why won't answers open up where is the log in page

Answers

Answer:

Hmm I'm not sure I joined only a few days ago.

Explanation:

after a macrophage ingests a pathogen, what does it do to the antigens?

Answers

Explanation:

After the macrophage ingests a pathogen, it creates an antigen on the surface of themselves, which signals the antigen to a corresponding helper T cell

Plants using the CAM pathway occur in many locations but are most common in very arid locations, such as deserts. What deserts occur in North America and where are these deserts located?

Answers

The desert that occurs in North America is the Great Basin Desert and it is located at Nevada of North America.

CAM pathway, which is also called Crassulacean Acid Metabolism, is a pathway that involves carbon fixation that occurs in plants growing in arid areas.

With this pathway these plants are able to photosynthesize during the day, but only exchange gases at night.

An arid habitat is an environment that is characterized by extreme lack of water, example is the desert.

In North America, the desert that occurs there is the Great Basin Desert. It spreads into different states which include:

NevadaWestern Utah, Eastern California, andIdaho.

But the major part of Nevada is occupied by the Great Basin Desert.

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Microevolution occurs when what kind of frequencies change?

Answers

Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift.

What questions you would like to ask your teacher to know about the role of vaccine in prevention of harmful diseases ​

Answers

Answer:

Some questions that can be asked:

1) How does the vaccine work and prevent diseases?

2) Can some people become allergic or have a negative response to vaccines, and How does this work?

3) What causes some vaccines to not work 100% effectively?

4) How do people create vaccines?

I'm not sure if this is what you were asking for, hopefully, this helps.

Which of these changes is a possible negative consequence of farmers
allowing livestock to overgraze a pasture?
O A. Desertification
O B. Shortage of freshwater
O c. Deforestation
O D. Abundance of clean air

Answers

Given what we know, one of the possible negative consequences of farmers  allowing livestock to overgraze a pasture is desertification.

What is Desertification?In simple terms, desertification is when the land becomes so dry and void of life that it can be considered a desert. This can be caused by many factors, primarily the lack of vegetation.

How can overgrazing lead to Desertification?Overgrazing can lead to desertification due to the fact that the plants and vegetation are not given the opportunity to regrow.The presence of vegetation allows the soil to remain moist and fertile by moving minerals and water through it. Overgrazing causes a lack of vegetation which creates dry and infertile land, which leads to complete desertification.

Therefore, we can confirm that one of the possible negative consequences of farmers  allowing livestock to overgraze a pasture is desertification due to the damage caused to the soil in the absence of vegetation.

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Which substance cannot be broken down into simpler substances?

Answers

Answer:

A Elements

Explanation:

Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.

This food web illustrates some characteristics that ANIMALS have in common. Find all the animals. What do they all
have in common?
A)
They are all predators.
B)
They must consume their food.
C)
They all have a skeletal system
D)
They all recycle matter in the food web.

Answers

Answer:

B) They must consume their food.

Explanation:

I just did the test

PLEASE HELP!!
Gastric secretion would include all of these except
A. pepsinogen

D. mucous

E. gastrin

C. CCK

B. HCl

Answers

Answer:

C. CCK

Explanation:

Gastric juice contains pepsinogen, HCl, mucus, rennin, and gastrin hormone.

Cholecystokinin (CCK) is secreted by I-cells of duodenum.

how many bases are needed to specify an mrna codon

Answers

Answer:

Three bases

Explanation:

how are rat mice gerbils hamsters guinea pigs and chinchillas similar?​

Answers

They are all rodents. This means they probably belong to the same order which is rodentia.

where does the light independent reaction take place

Answers

Answer:

stroma

Explanation:

The light-independent reactions represent the known Calvin–Benson–Bassham (CBB) cycle which takes place in the stroma of chloroplasts and is the primary pathway of carbon fixation of C3 plants [119].

In what layer of the atmosphere is weather occuring and the layer where we live?

Answers

Answer:

Atmosphere takes place in the stratosphere and we live in troposphere

The layer where the weather occurs and where we live is called the Troposphere layer.

mark me brianliest if i helped :)

Explain how homologous structures are used as a source of evidence to infer evolutionary relationships between modern and fossil organisms

Answers

Answer:

Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

Explanation:

Analogous structures demonstrate that identical selective pressures might result in similar adaptations, whereas homologous structures indicate evidence for shared ancestry.

What are analogous structures?

In contrast to homologous structures, analogous structures are characteristics of different species that have evolved in response to a similar environmental challenge and are similar in function but not necessarily in structure.

While comparable structures demonstrate that similar selective pressures can result in similar adaptations, homologous structures suggest that they have a common ancestor (beneficial features).

Therefore, homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

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What is 0.0000914 in scientific notation?
a b c or d

Answers

Answer:

The Answer is A

Explanation:

what is the cell wall function and factory part or worker?

Answers

Answer:

Major cell parts function just like the structures and people who work together in a factory. Cells have strong cell walls and a cytoskeleton to keep their shape; the walls are made of fiber for protection just like a factory building has sturdy walls for support.

The cell wall serves as a protective and structural layer surrounding plant, fungal, and bacterial cells. It provides rigidity, support, and defense against external pressures and pathogens.

In various species, the cell wall serves as a robust outer layer. Its primary component in plants is cellulose, which helps to preserve cell structure, limit excessive water absorption, and promote growth. Chitin is found in the cell wall of fungi, providing both structural integrity and protection.

Bacteria have a variety of cell wall compositions; peptidoglycan, for example, is an essential part of many bacterial cell walls. Along with other cellular components, this "factory-like" part of the cell performs its functions. It is comparable to a factory's base, supporting the cell's framework, and worker, guarding against threats and preserving the cell's overall operation.

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Which mechanism allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries

Answers

Answer:

Diffusion.

Explanation:

The mechanism that allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries is simple diffusion.

Simple diffusion is a passive transport mechanism that allows lipid-soluble substances to move across the membranes of endothelial cells in capillaries. This process occurs down a concentration gradient, from an area of higher concentration to an area of lower concentration, without the need for energy expenditure.

The membranes of endothelial cells, which make up the walls of capillaries, are composed of a lipid bilayer. Lipid-soluble substances, such as oxygen, carbon dioxide, steroid hormones, and certain lipid-soluble drugs, can readily diffuse through this lipid bilayer due to their ability to dissolve in and pass through the hydrophobic interior of the membrane.

Unlike lipid-soluble substances, water-soluble substances, such as ions and polar molecules, are unable to passively diffuse through the lipid bilayer. Instead, they rely on specific transport mechanisms such as facilitated diffusion or active transport to cross the endothelial cell membrane.

In the context of capillaries, simple diffusion allows lipid-soluble substances to move from the bloodstream through the endothelial cell membranes and into surrounding tissues or vice versa. This process plays a crucial role in the exchange of gases, nutrients, and waste products between the bloodstream and the tissues.

It is important to note that while simple diffusion allows for the passage of lipid-soluble substances, the movement of these substances can also be influenced by factors such as concentration gradients, molecular size, solubility, and the presence of transport proteins. However, the primary mechanism by which lipid-soluble substances traverse the endothelial cell membranes of capillaries is through simple diffusion.

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11.A tomato plant has 12 chromosomes in each egg/sperm cell. How many chromosomes do each
of their somatic cells have?

Answers

Answer:

12 chromosomes

Explanation:

hope its attachments

how do false killer whales help mankind and nature!!!!!???????

NEED TO KNOW VERY SOON PLESE ANSWER SOON AND FAST

Answers

Whales play an important role in the marine ecosystem where they help provide at least half of the oxygen you breathe, and they also improve climate change. Hope that helps.

the structure that separates the cochlear duct from the tympanic duct is the

Answers

Answer:

the basilar membrane

Explanation:

The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans. It is separated from the cochlear duct by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as vestibular duct.

Under which conditions would air hold less water vapor than it holds at 30°C
(86°F) with sunny skies?
A. 34°C (94°F) with cloudy skies
B. 30°C (86°F) with cloudy skies
C. 22°C (86°F) with sunny skies
D. 32°C (90°F) with sunny skies

Answers

Answer:

B

Explanation:

jus CS its right

The relative humidity of the air affects how much water vapor it can hold. 30°C (86°F) with cloudy skies would air hold less water vapor than it holds at 30°C (86°F) with sunny skies. So, the correct option is B.

What is Relative humidity?

Relative humidity (RH) measures the amount of moisture in the air compared to the maximum amount of moisture in the air at a given temperature and pressure. It is a standard figure for describing the moisture content of the air and is expressed as a percentage.

At a given temperature and pressure, air is considered to have 100% relative humidity when it contains all the moisture it can hold. The temperature at which the moisture in the air begins to condense into droplets is known as the dew point.

Therefore, the correct option is B.

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Two identical rectangles and​ squares, R and​ T, are arranged to form a larger square as shown. The area of square R is 1 square​ inch, and the perimeter of each rectangle is 7 inches. What is the perimeter of square​ T? Explain.




R




T




Because the area of square R is 1 square​ inch, its side length is




nothing ​inch(es). So, the shorter side of each rectangle is




nothing ​inch(es). If x represents the length of the longer side of each​ rectangle, the perimeter is









4 x equals 7




2 x plus 2 left parenthesis 1 right parenthesis equals 7




2 x left parenthesis 1 right parenthesis equals 7




x squared plus left parenthesis 1 right parenthesis squared equals 7 squared




and x




nothing. The perimete

Answers

Answer:

7×2÷4 it's the number not letter

most genetic diseases tend to be recessive. why is that?

Answers

if the disease was cause by the dominant allele, every person with said gene would be affected with the disease. if the genetic allele is recessive, both parents can be carriers (hetero) without being affected. that makes it easier for the genes to keep being passed on.

hope this helps!

Which is NOT true about pedigrees?

a. They show only recessive disorders.

b. They can be used to predict disorders in a family.

c. They indicate the sex of an individual.

d. They are useful in inferring genotypes of individuals.
****GIving Brainlist****

Answers

Answer:

i think its this one c. They indicate the sex of an individual.

The purpose of degrading cyclins is to stop the cell cycle from happening.

A. true
B. false

Answers

a.
positive cues, like growth factors, typically increase activity of Cdks and cyclins, while negative ones, like DNA damage, typically decrease or block activity.

STUDY TIP 1

Don't do all your studying the night before. Instead spread it out, review class materials several times a week, and focus on one topic at a time.​

FOLLOW FOR MORE

Answers

Answer:

That's cool, I think I'll try!

Explanation:

what veins return deoxygenated blood from the head and neck to the heart

Answers

The Venae Cavae

These veins return deoxygenated blood from the body into the heart, emptying it into the right atrium.

which statement correctly compares a function of lipids to a function of proteins in the body?

Answers

The main role of nucleic acids is to store information that is used to make proteins. Nucleic acids come in two main forms: deoxyribonucleic acids, also known as DNA, and ribonucleic acids, also known as RNA. The main function of DNA is to store the genetic information that cells in the body need to function

Which statement describes an important role of carbon dioxide in Earth's atmosphere?
Animals breathe carbon dioxide.
O Plants use carbon dioxide to make food.
O Carbon dioxido helps animals make proteins.
Carbon dioxide forms clouds that produce rain

Answers

Answer:Plants use carbon dioxide to make food

Explanation: Carbon-dioxide plays a very important role in sustaining life on Earth.

Plants use carbon-dioxide and water for photosynthesis in presence of sunlight and chlorophyll to produce food and oxygen.

CO₂ + H₂O →  O₂ + glucose (food)

This food is consumed by the animals and oxygen is used for respiration. Animals use energy from the food to do work and exhale back carbon-dioxide.

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