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Rom4ik [11]
3 years ago
8

A cell membrane is very specific about what it allows across how much does this help the cell

Biology
2 answers:
Lostsunrise [7]3 years ago
7 0

Answer:

Transport proteins allows only enzymes to pass through the membrane

Explanation:

givi [52]3 years ago
4 0

Answer:

It is the better for the cell if most molecules are prevented from entering.

Explanation:

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What is the difference between the Tropical and Mediterranean Climate? Explain.
olasank [31]

Answer:

tropical regions can have wet and dry seasons, but most of the rainfall is in the Summer, and falls for at most a few hours in any particular day.

Mediterranean climates have most of their rain in Winter, and it can rain the whole day.

Canary Islands is an interesting example of a place with almost-Tropical temperatures, but Mediterranean-like rainfall distribution, and therefore admits a wide variety of plants.

Explanation:

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What is a virus envelope in biology?
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The Virus Envelope is where the capsid is surrounded by lipid bilayer that contains viral proteins, usually including the proteins that would enable the virus to bind to the host cells. and is derived from the host cell membranes. They may help viruses avoid the host immune system. The viral envelope then fuses with the host's membrane, allowing the capsid and viral genome to enter and infect the host.

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3 years ago
Why do producers make up the base of the energy pyramid
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The base of the pyramid is composed of species called autotrophs, the primary producers of the ecosystem. All other organisms in the ecosystem are consumers called heterotrophs, which either directly or indirectly depend on the primary producers for food energy.

3 0
3 years ago
The body monitors the levels of oxygen in the blood to regulate breathing. Isabel is running in a marathon and is near the finis
Nataliya [291]

The chronological order of the response brought about by the nervous system is as follows.


1. Sensory receptors in the arteries detect low oxygen levels.

2. Sensory neurons generate an impulse.

3. The central nervous system relays an impulse to certain brain regions.

4. The brain sends signals through motor neurons.

5. Isabel's breathing rate increases.


The response to a stimulus is called a reflex action and the pathway traveled by the reflex action is called the reflex arch. A reflex action is an automatic involuntary response to a stimulus which minimizes any damage to the body. During conditions of low levels of oxygen in the body, the receptors detect the stimulus of low oxygen levels which could pose a threat to the individual and sensory neurons generate an impulse. It reaches the central nervous system and then the brain. In turn, brain sends signals through the motor neurons that carry a message and help in increasing the breathing rate of Isabel.

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3 years ago
In a food chain, which tropical level contains the greatest amount of energy
Maru [420]
I believe it's producers, correct me if I'm wrong.
5 0
3 years ago
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