IGCSE O Level Biology Practice Test 97

Double circulation in mammals Quiz Questions and Answers PDF - 97

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Double circulation in mammals Questions and Answers PDF Download: Quiz 97

MCQ 481: Pulmonary circulation links

A) blood from pulmonary arteries to pulmonary veins

B) blood from pulmonary veins to pulmonary arteries

C) blood from lungs to heart

D) blood in closed circulation system

MCQ 482: All is true for resting organisms, but,

A) no energy is lost in sleep

B) sleeping requires food

C) organisms continue growth in sleep

D) organisms' medulla keeps working even in sleep

MCQ 483: Total cell count of human body is

A) 60, 000 billion cells

B) 6000 billion cells

C) 600, 000 billion cells

D) varies with age

MCQ 484: Metabolism refers to the

A) anabolic activities

B) catabolic activities

C) respiratory activities

D) both A and B

MCQ 485: Protein essential for clotting of blood is

A) albumins

B) fibrinogen

C) globulins

D) lymph

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