O Level Biology Practice Test 192

Circulatory system Test Questions PDF - 192

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Biology: Circulatory system MCQs Quiz PDF Download

MCQ: In a human body, arteries

A) carry blood away from body

B) carry blood away from heart

C) bring blood back to body

D) bring blood back to heart

MCQ: 70 to 90% of cell protoplasm is

A) hemoglobin

B) protoplasm

C) water

D) energy

MCQ: Across age, the basal metabolic rate

A) changes

B) remains constant

C) increases

D) decreases

MCQ: More motile gametes are

A) male

B) female

C) both

D) gonads

MCQ: Presence of tubifax worms indicate that

A) the parasites are found in the intestine

B) cellulose in grass can easily be digested by pri-consumers

C) water is highly polluted

D) BOD is very low

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