Jamb Biology 2003 Past Questions and Answers

Question 46:

• JAMB 2003

The presence of sunken stomata and the folding of leaves are adaptations to

A. Prevent entry of pathogens
B. Reduce water loss
C. Remove excess water
D. Prevent guttation

Question 47:

• JAMB 2003

Spines and shells on animals are adaptation for

A. Camouglage
B. Chemical defence
C. Physical defence
D. Mimicry

Question 48:

• JAMB 2003

An example of cryptic colouration is the

A. Mottled colours on the moths that rest in lichens
B. Bright colour of an insect pollinated flower
C. Green colour of a plant
D. Bright marks on poisonous tropical frog on veriegated leaves

Question 49:

• JAMB 2003

Which of the following requires the use of carbon dating to prove that evolution has occurred?

A. Comparative anatomy
B. Biochemical similarities
C. Molecular records
D. Fossil records

Question 50:

• JAMB 2003

the inactive state exhibited by an animal during hot dry seasons is termed

A. Aestivation
B. Dormancy
C. Resting
D. Hibernation