Answer:
The answer is A.
Explanation:
It can be regulated with negative feedback loops.
<span>nerve cells need b 12 for proper functioning</span>
I believe your answer is E
In what area did the National Association for the Advancement of Colored People (NAACP) have its first successes? pressuring Congress to pass voting rights laws winning court battles against public school segregation bringing Northern whites into the Civil Rights movement winning court battles against discrimination in employment
Some arteries carry oxygenated blood just as some capillaries do.
Some veins carry deoxygenated blood just like some capillaries do.
