JAMB Biology Past Questions & Answers - Page 344

1,716.

Organisms in an ecosystem are usually grouped according to their trophic level as

A.

carnivores and epiphytes

B.

consumers and parasites

C.

producers and consumers

D.

producers and saprophytes

Correct answer is C

No explanation has been provided for this answer.

1,717.

The parts used by the tapeworm to fasten itself to the host’s intestine are the

A.

Neck and suckers

B.

Hooks and suckers

C.

Rostellum and suckers

D.

Young proglottis and neck

E.

Rostellum, hooks and suckers

Correct answer is B

No explanation has been provided for this answer.

1,718.

The most important factors that influence an organism's way of life in its habitat are

A.

the physicals and biotic environment

B.

Food and water availability

C.

temperature, water, light and predator-prey relationship

D.

competition for food and spaces

Correct answer is C

No explanation has been provided for this answer.

1,719.

The removal of a man’s pancreas by surgical operation can affect only the digestion of 

A.

Starch

B.

Starch, protein and fats

C.

Oils and fats

D.

Proteins

E.

Carbohydrates and fats

Correct answer is B

No explanation has been provided for this answer.

1,720.

In the Burret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive results?

A.

Mercurous nitrates

B.

Copper sulphate

C.

Mercuric nitrate

D.

Sodium carbonate

E.

Ammonium hydroxide

Correct answer is B

No explanation has been provided for this answer.