Question

A group of organs that work together to perform a closely related function is called a(n)

a. organ system.
b. organism.
c. tissue.
d. cell. user: which type of tissue is made of cells that contract and relax?
a. nervous tissue
b. epithelial tissue
c. muscle tissue
d. connective tissue

Answer 1

its an organ system. hope this helps

Answer 2

The answer is A: organ system
I hope this helps!