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Vlad1618 [11]
3 years ago
13

What is the advantage of having valves in the veins?

Biology
2 answers:
iogann1982 [59]3 years ago
7 0

Answer: Why do veins have valves and what is their function? These valves are what ensure blood flows toward your heart. Vein valves work hard, against gravity, to bring the blood that flowed down via arteries back up to your heart.

Explanation: thats the answer i hope this helps you :)

enot [183]3 years ago
5 0

Answer: ensure blood flows toward your heart

Explanation:

These valves are what ensure blood flows toward your heart. Vein valves work hard, against gravity, to bring the blood that flowed down via arteries back up to your heart. When your vein valves are open and healthy, they are able to do their job properly, as the blood is easily able to flow up.

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Alenkinab [10]

A car needs to be fueled before it can set in motion to posses a given amount of kinetic energy.

<h3>What is energy?</h3>

Energy is the capacity of doing work. In physics, there exist different types of energy; among which are follows:

  • Kinetic energy: Kinetic energy can simply be defined as that energy a body posses due to its motion
  • Potential energy: , On the other hand, potential energy is the energy a body has due to its relative position.

Other forms of energy include:

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So therefore, a car needs to be fueled before it can set in motion to posses a given amount of kinetic energy.

Therefore, kinetic energy is the energy which allows a car to be fueled before it can set in motion .

Learn more about kinetic energy:

brainly.com/question/25959744

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8 0
2 years ago
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Semenov [28]
That would be called a source or head water 
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3 years ago
Is unicellular eukaryotic or prokaryotic
Nataliya [291]

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It's Eukaryotic

Explanation:

8 0
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tamaranim1 [39]

Answer:

The correct answer is option B ( ligand gated channels opened by neurotransmitter molecules).

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The cell membrane of the dendrite is embedded with ligand-gated channels which opens up in response to the ligand (neurotransmitters) produced by the neurotransmitter vesicle of axon or output region of neuron.

The neuromuscular junction is such a case where acetylcholine receptors present in the dendrite opens in the presence of acetylcholine.

Thus, option B ( ligand-gated channels opened by neurotransmitter molecules) is the correct option.

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