Circulatory system Learning App | IGCSE O Level Biology MCQs e-Book PDF
IGCSE O Level Biology MCQs (O Level) From Textbook

IGCSE O Level Biology MCQs – Mock Test 192

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Circulatory system MCQ – Mock Test 192 PDF Download

MCQ 956: In a human body, arteries:

  1. carry blood away from body
  2. carry blood away from heart
  3. bring blood back to body
  4. bring blood back to heart

MCQ 957: 70 to 90% of cell protoplasm is:

  1. hemoglobin
  2. protoplasm
  3. water
  4. energy

MCQ 958: Across age, the basal metabolic rate:

  1. changes
  2. remains constant
  3. increases
  4. decreases

MCQ 959: More motile gametes are:

  1. male
  2. female
  3. both
  4. gonads

MCQ 960: Presence of tubifax worms indicate that:

  1. the parasites are found in the intestine
  2. cellulose in grass can easily be digested by pri-consumers
  3. water is highly polluted
  4. BOD is very low

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