Heart Blood vessels. (Arteries, Capillaries, and Veins)
Answer:
A: since a graph can only hold one variable
Explanation:
Hopefully this helps!
Answer:
their nuclear material is naked not membrane bound
D: Where two continental plates are colliding, creating a convergent boundary. One plate slips under the other because of convection currents in the mantle.
Answer: Negative feedback serves to reduce an excessive response and to keep a variable within the normal range. Negative feedback loops control body temperature and the blood glucose level.
