Question

The three major parts of the circulatory

system are the heart, the blood vessels,
and the blood. The heart is an organ
made up of specialized cells. Which of
these functions can the heart
perform
that individual heart cells cannot?

A) pumping blood
B) producing waste
C)using energy
D)growing larger

Answer 1

A) pumping blood because that is what the heart does

Answer 2

A) pumping blood

Step-by-step explanation:

All cells are capable of producing waste, growing larger, and using energy. Pumping blood is a unique characteristic of the heart.