The process of converting food so that it can be absorbed into the blood and used by the blood vessels A. Peristalsis
B. Bowel Elimination
C. Constipation
D. Digestion

The answer would be digestion

Explanation:

When food is digested, it's broken down into smaller pieces so its can convert into energy for our body.

hope this helps :3

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;