Kidneys are highly vascularized. They are found deep in the body, and are surrounded by tissue and blood vessels, so they are considered vascularized.
The mouth, stomach, small intestine, and large intestine. Containing hydrochloric acid and digestive enzymes.
Answer:
C.x=4
Explanation:
i think it would be this one because usually functions begin with y
Stem cells are what allow planaria to grow and regenerate as the stem cells can change into any of the cells that make up the planaria.
