ECOLOGY - Jamb Biology Past Questions and Answers

Question 196:

• JAMB 2003

The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with

A. Denitrifying bacteria
B. Saprophytic bacteria
C. Rhizobium
D. Nitrosomonas

Question 197:

• JAMB 2003

In the experiment, the layer of oil serves to prevent water loss

A. Transpiration
B. Evaporation
C. Osmosis
D. Guttation

Question 198:

• JAMB 2003

A density-dependent factor that regulates the population size of organism is

A. Disease
B. Sudden flood
C. Drought
D. Fire outbreak

Question 199:

• JAMB 2003

The correct sequence of biomes from northern to southern Nigeria is

A. Guinea savanna → sudan savanna → tropical rain forest → sahel savanna → estuarine
B. Estuarine → tropical rain forest → guinea savanna → sahel savanna
C. Sahel savanna → tropical rain forest → estuarine → guinea savanna
D. Sahel savanna → sudan savanna → guinea savanna → tropical rain forest → estuarine

Question 200:

• JAMB 2003

Mycorriza is an associationn between fungi and

A. Protozoans
B. Roots of higher plants
C. Bacteria
D. Filamentous algae