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taurus [48]
4 years ago
7

When the voltage of a plasma membrane shifts from +30mv towards 0 mv, we say the cell is

Biology
1 answer:
stealth61 [152]4 years ago
3 0
When voltage of a plasma membrane shifts from +30mV towards 0mV, we say cell is repolarizing. Repolarization results from the movement of positively charged K+ ions out of the cell. This repolarization phase of an action potential results in hyperpolarization, attainment of a membrane potential that is more negative than the resting membrane potential. 
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Which answer lists different behavioral responses that some animals use as defense mechanisms?Question 8 options:camouflage, mim
Crank

To answer this we need to analyze each statement

camouflage, mimicry, and stingers: This is meant to escape predation and fend off predators, so this is the correct answer.

hibernation and migration: This is meant for breeding and or food energy storage, to pass hard seasons so is also incorrect.

courtship and breeding behaviors: This is meant for reproduction and to ensure offspring so this is incorrect.

nesting and food gathering: this is a behavior for survival, resource use rather than defense, si this is not correct.

7 0
2 years ago
Cellulose, chitin, and the polysaccharide that makes up the cell walls of many bacteria are the structural polysaccharides, wher
Harrizon [31]

Answer:

B

Explanation:

Wall cell has to be strong to bring protection to the cell. In general it is made of beta-glycosidic bonds.

Storage polysaccharides, are a source of available energy for the cell in any moment. Therefore, the bonds of storage polysaccharides need to be weak. In that way, when the cell needs energy from carbohydrates, it is not going to spend so much energy trying to break the bond.  

 

8 0
4 years ago
32 points! :)
DochEvi [55]

Answer:

Its diabetes i just took it. its right.

Explanation:

Please rate me brainliest!

6 0
4 years ago
Read 2 more answers
Mention four ways to keep your environment clean​
leva [86]

Answer:

Recycle, Drive your car less, Save water, and Save Electricity

Explanation:

8 0
3 years ago
Which of the following is a possible reason for sleep?
Anika [276]

Answer: a). growth

Sleep is a necessary biological activity shown by most of the living creatures. It is the primary activity of the brain. During sleep the blood supply to the muscles increases, the energy of the body gets restored, repair and tissue and growth takes place. Important hormones are released for the process of growth and development.

Therefore, sleep is necessary for growth is a correct option.


4 0
3 years ago
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