A newborn baby has approximately 305 bones because a baby skeleton is mostly cartilage. As a person grows up, most of this cartilage turns into bone in a process called ossification. By the time they grow up, they have only 206.
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Answer: The sympathetic nervous system connects the internal organs to the brain by spinal nerves. When stimulated, these nerves prepare the organism for stress by increasing the heart rate, increasing blood flow to the muscles, and decreasing blood flow to the skin.
Explanation:
The amount of medicine because the different weights.
Answer: 4 This group of substances can produce chemical vapors that can be inhaled to produce a mind-altering effect.
stimulants
psychoactives
inhalants
depressants
