BIOLOGY
JAMB 2010 - Question 6
Biology 2010 JAMB Past Questions - Question 6: with respect to their decreasing dependence on aquatic conditions for reproduction, which of the following is the correct arrangement of the animals represented?
Use the diagram to answer questions 6 AND 7

A:
B:
C:
D:
Correct Answer
A
Explanation
A - Life started in aquatic environment. Fishes live permanently in water, feed on aquatic' organism and take dissolved oxygen in water. Adult toads return to water for reproduction. Fertilized eggs are laid in water which hatch into tadpoles. Tadpoles develop •' into young toads. The young toads migrate to land to feed on insects and worms. Crocodiles labelled II sometimes come out of water to feed on small animals and to bask the sun. They also lay eggs along the banks of the river. The eggs hatch into young crocodiles before they(Youngs) are carried into the water. Rabbit labelled I lives completely on land and has nothing to do with aquatic environment.

