Jamb Biology 1981 Past Questions and Answers

Question 36:

• JAMB 1981

Growing yam tendrils climb for support. This growth response is

A. Haptotropism
B. Geotropism
C. Phototropism
D. Hydrotropism
E. Chemotropism

Question 37:

• JAMB 1981

Soil is said to be fertile if

A. It is black
B. It can supply usable nutrients to plants
C. The oxygen content is very high
D. Artificial manure is added to it
E. It is not waterlogged

Question 38:

• JAMB 1981

A plant which has a horizontal underground stem is

A. Rhizome
B. Corm
C. Creeper
D. Tuber
E. Bulb

Question 39:

• JAMB 1981

The hepatic portal vein is unique because it

A. Carries deoxygenated blood
B. Begins and ends with capillaries
C. Is the largest vein in mammals
D. Carries digested food
E. Is the shortest vein in mammals

Question 40:

• JAMB 1981

The functional unit of a mammalian kidney is the

A. Urethra
B. Malphigian capsule
C. Glomerulus
D. Nephron
E. Ureter