Answer:
stratovolcanoes are one that frequently erupt
Answer:
1) blue
2) red
3) red
4) blue
Explanation:
organs need red blood and they get rid of blue blood. the lungs are what changes blue to red, so the lungs take in blue and expels red blood.
Answer:
Actin filaments return to their original positions (does not occur in muscle contraction, according to the sliding filament model).
Explanation:
The mitochondrion or mitochondria is the correct answer (C) <span />
