Chemistry

Ryker

17 November, 02:25

Cytoplasm

Cell Wall

Compared to the structures in an animal cell, which

of the following structures is found only in a plant

cell?

Mitochondrion

Mitochondrion

Cell Wall

Cytoplasm

Nucleus

Nucleus

19. In order to maintain homeostasis, the systems of the human body work together to keep a constant internal

temperature. Which of the following best describes how the human body responds in a cold environment?

a. The digestive system produces more hormones to warm the body.

b. The nervous system signals the muscles of the muscular system to contract and warm the body.

c. The circulatory system delivers less carbon dioxide to the muscular system, resulting in stiffening of the

muscles.

d. The skeletal system produces more blood cells that circulate through the blood vessels, increasing the

warmth of the body.