WAEC Past Questions and Answers - Page 4048

20,236.

One of the differences between plant and animal cells is that in plants

A.

cells have less distinct outline, but animal cells have distinct outline

B.

The cell wall is made of cellulose, but animal cell wall is made of chitin

C.

large vacuoles are absent, but present in animals

D.

plastids are absent, but present in animals

E.

carbohydrates are stored as starch, but as glycogen in animals

Correct answer is E

No explanation has been provided for this answer.

20,237.

Which of the following organisms is one-celled and free-living?

A.

Volvox

B.

Spirogyra

C.

Rhizopus

D.

Chlamydomonas

E.

Hydra

Correct answer is D

No explanation has been provided for this answer.

20,238.

Which of these could be regarded as an advantage of complexity in higher organisms?

A.

there is no cellular differentiation

B.

Cellular differentiation leads to loss of independence of the cells

C.

Complexity stops at cellular differentiation only

D.

Cellular differentiation leads to internal structural specialization

Correct answer is D

No explanation has been provided for this answer.

20,239.

At what level of organisation is the Amoeba?

A.

Tissue

B.

Organ

C.

Cellular

D.

System

E.

Filament

Correct answer is C

No explanation has been provided for this answer.

20,240.

Which of the following structures does not function as support in animals?

A.

Cuticle in arthropods

B.

Scales in birds

C.

Cartilage in mammals

D.

Body fluids in earthworms

E.

Bones in vertebrates

Correct answer is B

No explanation has been provided for this answer.