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tatiyna
3 years ago
9

Why is a cell membrane important in the defense of a cell

Biology
1 answer:
Gnoma [55]3 years ago
4 0
Because the cell membrane controls what enters and leaves the cell. It also gives the cell support and protection and helps maintain homeostasis. Hope it helps you
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The long bundle of neurons that carries messages to and from the body to the brain and is responsible for very fast, lifesaving
olga2289 [7]

The long bundle of neurons that carries messages to and from the body to the brain and is responsible for very fast, lifesaving reflexes is called the<u> spinal cord. </u>

<h3>What is the espinal cord?</h3>

There are two organs involved in the central nervous system that function as control centers,

  • The brain,
  • The spinal cord.

The spinal cord is a nerve tube placed in a hollow space left between vertebras along the vertebral column. The vertebrae's body protects the spinal cord.

It is made of nerves that take orders from the brain to the rest of the body and send messages from the body to the brain.  

Reflexes acts are produced in the medulla, and the brain is not involved.

The nervous cells of the medulla have fibers that extend from the medulla to the body and are connected to sensory receptors.

When receptors receive stimuli, they send information to the nerve fibers, which take it to the brain. From the brain, they send a response.

The answer is spinal cord.

You can learn ore about the spinal cord at

brainly.com/question/6957362

brainly.com/question/15707666

6 0
2 years ago
Why is using staw for insulation good for the environment?
Advocard [28]

Answer:

staw or straw? But, never the less, normal insulation hurts the environment. while being manufactured, the factory's blow smoke. while straw/staw do not have to be built, so there for wont hurt the environment.

Explanation:

7 0
3 years ago
Read 2 more answers
A decrease in the resting membrane potential is __________ whereas, __________ is an increase in the membrane potential.
nexus9112 [7]

Answer: depolarization; hyperpolarization

Explanation:

At resting potential (absence of stimulus), the cell membrane of a neuron is said to be polarized with a net negative charge within due to more potassium (K+) ions present than sodium (Na+) ions.

However, an impressed stimuli reverses the ions content as K+ ions flows out and quickly replaced by Na+ ions, resulting in a decrease in membrane potential and a more positive cell membrane. Thus, depolarization occurs.

An increase in the membrane potential (so that it becomes more negative) is called hyperpolarization.

4 0
3 years ago
Read 2 more answers
Twin studies document similarities and differences between twins. When two _____ twins raised under very ______ circumstances di
Aneli [31]

Answer:

Twin studies document similarities and differences between twins. When two IDENTICAL twins raised under very DIFFERENT circumstances display similar personality traits, that suggests a strong GENETIC influence on personality. Critics of twin studies suggest that some documented similarities between twins are based on the fact that the twins are still the same age and may have some SIMILARITIES because of it.

Explanation:

It is not fully proved the genetic influence on the personality, and it is not the only factor wich modify the conduct.

It is stated that the personality is the result of a combination of different stimulus as genetic, socio-economic environment, parental education, upbringing rules, etc. Even the personal health can modify the personality.

3 0
3 years ago
What is the keystone species of the food web shown below?
sergey [27]

D phytoplankton i believe

6 0
3 years ago
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