Author Question: Tight rings of muscles that control the movement of food through the organs of the gastrointestinal ... (Read 128 times)

Bob-Dole · **on:** Aug 20, 2018

Tight rings of muscles that control the movement of food through the organs of the
gastrointestinal tract are villi.

Indicate whether the statement is true or false

Question 2

Tiny units of matter that cannot be broken down by natural means are called cells.

Indicate whether the statement is true or false