Question

bio plz help

Answer 1

26) In the human body, hydrochloric acid is responsible for the low pH of the contents of the

a. kidney

b. Gall bladder

c. stomach

d. liver


27) The main function of the digestive system is to

a. Break down large molecules into small molecules and absorb nutrients

b. Excrete oxygen and carbon dioxide

c. Synthesize minerals and vitamins needed for a healthy body

d. Remove waste products from the blood


28) The basic units of structure and function in the nervous system are

a. neurons

b. axons

c. dendrites

d. neurotransmitters


29) The central nervous system consists of

a. Sense organs

b. reflexes

c. Brain and spinal cord

d. Sensory and motor neurons

Answer 2

C
A
A
C

Answer 3

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