Explanation:
1. Describe the appearance of the valves of a heart. How the anatomy of the valves helps do their function?
2. Explain how the heart could compensate for changes in peripheral resistance.
3. Where in the heart the thickness of the heart varies? Why?
When an action potential abides by the all-or-nothing principle, it reaches
its threshold and moves all the way down the axon without losing any of its
intensity.
<h3>What is Action potential?</h3>
This is defined as the change in electrical potential as a result of the
passage of an impulse along the membrane of a muscle cell or nerve cell.
The all-or-nothing principle indicates that there will be a full or no
response at all. This means that the axon won't lose any of its intensity
because the strength of the response of a nerve cell or muscle fiber is not
dependent upon the strength of the stimulus
Read more about Action potential here brainly.com/question/6705448
Answer:
Hydrogen, <em><u>H</u></em>
Aluminum, <em><u>Al</u></em>
Cobalt, <em><u>Co</u></em>
Answer:
Explanation:
Glutamate is the major excitatory neurotransmitter in the brain and plays a critical role in the acute and long-term effects of nicotine
Answer:
What amino acids do is aid growth, cell replacement, and cell and tissue repair.
Explanation:
Amino acids are the units that make up the structure of proteins, necessary for the structure and function of living beings.
Due to the structural function of proteins —capable of forming tissues such as muscle and collagen that are present throughout the body— it can be said that <u>amino acids contribute to growth and development. In addition, amino acids and proteins can assist in cell renewal and repair of cells and tissues</u>.
The other options do not correspond to functions of the amino acids:
- <u><em>Help the body use certain vitamins and create cell energy </em></u><em>is a function of the lipids.
</em>
- <u><em>Provide energy and help cells get energy from other nutrients</em></u><em> is a function of carbohydrates.
</em>
- <u><em>Turn carbohydrates into proteins, fats, and fatty acids</em></u><em> is not a amino acid function.</em>
