Answer:
No. They don't necessarily have to be the same. For example, there can be isotopes (different numbers of neutrons) or ions (different numbers of electrons). The only thing that can't vary between atoms of the same element is the number of protons, but the others can have some variation.
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.
<span>Good Morning!
The protonema is the part of the plant that gives rise to the gametophytes in the bryophyte plants.
</span>It gives rise to gametophyte.<span>
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<h2>Answer </h2>
Option C - Secondary Succession
<u>Explanation </u>
Secondary succession occurs in an ecosystem after a lava flow has completely covered the surface of an area of land. Secondary succession is a method originated by an incident that decreases an already organized ecosystem to a less group of varieties and secondary succession happens on pre-existing clay example forest fire, harvesting, hurricane, and similar. It is a succession is the type of succession which can take place after the destruction of the area. Examples include areas which have been cleared of existing vegetation.
