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sergey [27]
4 years ago
8

Need some help please!!!!!

Biology
2 answers:
Eduardwww [97]4 years ago
8 0
The answer is the first option ur welcome
Zarrin [17]4 years ago
7 0
It is the 4th one because when
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As her professor distributed the mathematics test to the class, Blair's heart started to pound and her palms began to sweat. The
Cerrena [4.2K]

Answer:

sympathetic nervous system

Explanation:

The sympathetic nervous system is part of the autonomous nervous system which controls the involuntary body functions as heart rate, breath rate, perspiration etc. The sympathetic nervous system is specifically responsible for the increase in the function of body functions when the body perceives a threat. When faced with a threat or distress, the sympathetic nervous system initiates physiological reactions known as the “fight or flight” response, thereby increasing the body’s alertness to such threat. Examples of increased body functions or “fight or flight response” include increased perspiration and increased heart rate, as exhibited by Blair.

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The grizzly bear feeds on salmon that migrate upriver from the ocean during the spawning season. These fish are rich in carbon,
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Keystone species....?
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A student postulated that the sodium pump directly causes action potentials along neurons. Is this hypothesis reasonable?
Leviafan [203]

Answer:

No.this does not cause action potential.

Explanation:

Action potential is formed from the  influx of sodium ions through the special  sodiun channels call  volatage gated channels.

The influx caused deoplarisation and if upto to  the threshold level give action potential.

The  influx of sodium and out flux at the  node of  Ranvier does not lead to action potential neither does  hydrolysis of ATPs  for its active transports process.

The sodium pump is for maintenance of  electrochemical gradients with potassium for maintaining Resting Membrane Potential of the neuron.

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the answer is genetic drifts.

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What is a synonym for net force?
pickupchik [31]

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resultant force, force, acceleration, physics, and rotation

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