The heart rate becomes faster due to the heart working more rapidly.
Answer:
where did u get the question
I guess this is variation
<span>C. A nucleotide, which is the basic component of proteins such as enzymes
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Answer:
The tree line is the edge of the habitat at which trees are capable of growing. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions (usually cold temperatures, extreme snowpack, or associated lack of available moisture
Explanation:
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B. Mental
I guess this is right