Question 16:

• JAMB 2019

In which of the following groups of organisms do all the members have asexual method of reproduction?

A. Mucor (or penicillium), a bird and a toad (or frog)
B. A geen filament algae, a flowering plant and a bird
C. Ameoba, mucor (or penicillium ) and a green filamentous algae
D. A toad (or frog) , ameoba and mucor ( penicillium)
E. A flowering plant, tape worm (or ascaris) and a green filamentous algae

Question 17:

• JAMB 2019

The hormone which tones up the muscles of a person in time of danger is from the

A. Pancreas
B. Adrenal gland
C. Liver
D. Thyroid gland
E. Testosterone

Question 18:

• JAMB 2019

The study of organism and the environment of an abandoned farmland is the ecology of?

A. a habitat
B. An ecosystem
C. A specie
D. A population
E. A community

Question 19:

• JAMB 2019

A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that

A. The shoot lost 1g of water per hour
B. The potometer water receded at the rate of 1g per hour
C. The shoot absorbed 1g of water per hour
D. The shoot was respiring and lost weight at rate of 1g per hour
E. 1g of water per hour evaporates from the potometer

Question 20:

• JAMB 2019

At fertilization

A. One gene from the male combines with another from the female
B. One cell from the male fuses with another from the female
C. One set of chromosome combines with another set from the female
D. One chromosome from the male joins another from the female
E. The male nucleus fuses with the female nucleus