The correct answer is heterotrophs
The first answer on the top is wrong
Answer:
The humoral immune response involves mainly B cells and takes place in blood and lymph.
Explanation:
Answer:
C. capillaries connect arteries and veins.
Explanation:
A is false, veins carry blood towards the heart.
B is false because arteries are the thickest blood vessel.
C is completely true
D is false, heartbeat is controlled by electric impulses
Answer:
how much should examples should I give