Question 506:

• JAMB 1987

In most true ferns sporangia are grouped into

A. Indusium
B. Fronds
C. Prothalli
D. Sari

Question 507:

• JAMB 1987

In the reproduction of mosses, water is essential because

A. They live in moist habitats
B. They cannnot reproduce without water
C. The male ganetes must swim to fertilize the ovum
D. They produce spores

Question 508:

• JAMB 1987

In tapeworm, the two structure that run throughout the length of the body are the

A. Nerve cord and excretory duct
B. Sperm duct and the nerve cord
C. Genital pore and the excretory duct
D. Sperm duct and the genital pore

Question 509:

• JAMB 1987

Which of the following is not a characteristics of snail?

A. Bilateral symmetry
B. Chitinous exoskeleton
C. Muscular foot
D. Soft unsegmented body in mantle

Question 510:

• JAMB 1987

In the life history of butterfly, destruction of crops is caused by the

A. Maggot
B. Nymph
C. Caterpillar
D. Pupa