Ecology - Biology Jamb Past Questions and Answers

Question 1 :

• JAMB 2019

Nitrifying bacteria keep the soil fertile by

A. converting ammonium salt to nitrate
B. Converting atmospheric nitrogen to plant nitrogen
C. Converting nitrate to nitrogen
D. Converting nitrate to nitrous oxide
E. Converting atmospheric nitrogen to nitrates

Question 2 :

• 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 3 :

• JAMB 2019

A potometer was used to compare the rate of loss of the same volume of water from a plant under different environmental conditions as under a fan, at the sea shore, under the sun, in the airy laboratory and in cupboard. What time was likely to have been obtained in a cupboard?

A. 28 secs
B. 25 secs
C. 20 secs
D. 15 secs
E. 30 secs

Question 4 :

• JAMB 2019

A farmer X working in a swamp did not eat any food nor drink any water. Which of this diseases can he not contact

A. Bilharzia
B. Malaria
C. River blindness
D. Cholera
E. Sleeping sickness

Question 5 :

• JAMB 2019

The complex relationship between the members of a community and between the community as a whole and its physical environment is

A. Habitat
B. Niche
C. Environment
D. Ecosystem
E. Micro habitat