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cestrela7 [59]
3 years ago
11

Hyponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary cont

ractions of muscles, are among the symptoms of hyponatremia. Why do they occur?
A.

Sodium is needed to generate an action potential.

B.

Sodium makes up most of the myelin sheath.

C.

Sodium is the signaling molecule that transmits impulses across a synapse.

D.

Sodium controls voluntary movement, and potassium controls involuntary movement.
Biology
2 answers:
Luden [163]3 years ago
5 0
D. Sodium controls voluntary movement, while potassium controls involuntary movement. We know this because muscular spasms such as a Charlie horse is due to a lack of potassium.
topjm [15]3 years ago
3 0

Answer:

I think it's A: Sodium is needed to generate an action potential

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Which mechanism is responsible for reductional cell division?
Leokris [45]

Answer:

Meiosis.

Explanation:

Meiosis may be defined as the process of cell division in which a single parent cell divides into four daughter cells. This type of division occurs in the sex cells.

The meiosis division is also known as reduction division because the daughter cells contain the half number of chromosomes as compared with parent cell. The meiosis is divided into meiosis-I and meiosis-II.

Thus, the correct answer is option (C).

6 0
3 years ago
With the proper stimuli, chemoreceptors and mechanoreceptors are depolarized. This is a result of:Sodium channels opening as a r
Alex73 [517]
<h2>Sodium channels </h2>

Explanation:

Depolarization is a result of sodium channels opening as a result of chemical or pressure-based stimuli    

  • Depolarization starts when a threshold stimulus applied on a neuron via Na+ mechanically operated channels that trigger action potential
  • Action potential is an efficient signaling process by which distantly located cells communicate to each other
  • Depolarization of membrane potential is due to influx of Na+ via voltage gated Na+ channels
  • Fast opening of voltage gated Na+ channel shifts membrane potential from -70mV to + 50mV at which voltage gated Na+ channels become inactive thus influx of Na+ abruptly stops        
7 0
3 years ago
A student is investigating temperature changes at a nature preserve on a hot, clear day. Each hour, the student takes two temper
Nataly [62]

A. Air over the lake will reach its highest temperature later in the day and will stay warm longer than air over the ground.

Explanation:

The most likely observation the student will record is that the air over the lake will reach its highest temperature later in the day and will stay warm longer than air over the ground.

This phenomenon between the differences in land and water temperature causes land sea breeze to occur.

  • Water has a very high specific heat capacity.
  • This implies it takes more heat to cause a monumental increase in its temperature.
  • It is expected that the student will observe that the air over the lake body will reach its highest temperature later in the day. It would have gotten heated with time.

A body such as water in a lake with a high specific heat capacity stays warm for a longer period of time compared to other substances.

Metals do not have high specific heat capacity and would not stay warm for long. They quickly lose heat.

learn more:

Specific heat capacity brainly.com/question/7210400

#learnwithBrainly

3 0
3 years ago
2. The Earth experiences different seasons due to the:
Scorpion4ik [409]
The answer is to your question is A
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Why was the spread of agriculture an important vent in human history?
DaniilM [7]

It provided people with 1 of their most basic needs, a dependable supply of food

8 0
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