WAEC Biology Past Questions & Answers - Page 150

746.

A space containing a group of interactive organisms is called

A.

community

B.

habitat

C.

ecosystem

D.

population

Correct answer is A

No explanation has been provided for this answer.

747.

Which of the following food substances will have little or no calorific value?

A.

Proteins

B.

Carbohydrates

C.

Lipids

D.

Water

Correct answer is D

No explanation has been provided for this answer.

748.

The appropriate food to be given to the child in the picture above is?

A.

beans

B.

garri

C.

bread

D.

avocado pear

Correct answer is A

A good proportion should be (animal) protein, so that we may be sure of giving also enough vitamin B12, and a satisfactory mixture of amino-acids. 

Protein can be found in foods like:

  • seafood.
  • eggs.
  • lean meat.
  • beans.
  • peas.
  • nuts.
  • seeds.

749.

Which of the following digestive enzymes would be greatly affected if the liver fails to
produce bile?

A.

Amylase

B.

Cellulase

C.

Lipase

D.

rotease

Correct answer is C

No explanation has been provided for this answer.

750.

The bones of the legs of a six years old boy are observed to be weak and crooked. Which of the following elements were deficient in his mother’s diet at pregnancy?

A.

Sodium and iron

B.

Iron and manganese

C.

Calcium and phosphorus

D.

Magnesium and sulphur

Correct answer is C

No explanation has been provided for this answer.