Quiz | Mind Map - EdrawMind

Question 1

Which of the following initiates the process of blood clotting?

a) Dammage to the lining of a blood vessel

Answer

b) Exposure of blood to the air

c) Conversion of fibrinogen to fibrin

d) Attraction of Leukocytes to a site of infection

e) Conversion of fibrin to fibrinogen

Question 2

Mass extinctions that occurred in the past...

a) Cut the number of species to the few survivors left today

b) Resulted mainly from the separation of the continents

c) Occurred regularly, about every million years

d) Were followed by diversification of the survivors

Answer

e) Wiped out land animals but had little effect on marine life

Question 3

If an intestinal cell in a grasshopper contains 24 chromosomes, a grasshopper's sperm cell would have ..... chromosomes.

a) 3

b) 6

c) 12

d) 24

Answer

e) 48