Answer:
It is the primary mechanism for evolution.
Explanation:
<span>Hurting yourself usually is not fun at all, especially stubbing your toe, but when that happens, the signals move rapidly up insulated nerve fibers to the brains thalamus which is like a relay station and directs them over to the sensory cortex of the brain. The signals are then interpreted by the brain as a sharp pain, and
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Answer:
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Explanation:
environment plays an important role in the healthy living of human beings. it matters because it is the only home that humans have ,and it provides air, food and other needs. Humanity's entire life support system depends on the well -being of all the environment factors.
Answer:
refrain from using or disposing of (something); retain for future use.
Explanation:
