JAMB Biology Past Questions & Answers - Page 398

1,986.

The organ through which food and oxygen are supplied to the human embryo and which also prevents harmful materials from reaching the embryo is the

A.

amnion

B.

uterus

C.

placenta

D.

umbilical cord

E.

fallopian tube

Correct answer is C

No explanation has been provided for this answer.

1,987.

Human beings require vitamins in their diet because vitamins

A.

contain carbohydrates and fats

B.

 prevent kwashiorkor

C.

stimulate the alimentary canal

D.

digest proteins in the body

E.

influence many important chemical processes in the body

Correct answer is E

No explanation has been provided for this answer.

1,988.

Some of the features of an animal are scales, teeth, nares and backbone. The animal is likely to be a

A.

Toad

B.

Bird

C.

Lizard

D.

Rat

E.

 Bat

Correct answer is C

No explanation has been provided for this answer.

1,989.

Which of the following spreads malaria in Nigeria?

A.

Anopheles mosquito

B.

Culex mosquito

C.

Aedes mosquito

D.

Tsetse fly

E.

House fly

Correct answer is A

No explanation has been provided for this answer.

1,990.

In Mucor or Rhizopus carbohydrate is absorb in the form of 

A.

starch

B.

sucrose

C.

glucose

D.

glycogen

E.

arabinose

Correct answer is C

No explanation has been provided for this answer.