WAEC Biology Past Questions & Answers - Page 99

491.

The above diagram represents a

A.

longitudinal section of a stem

B.

longitudinal section of a root

C.

cross section of a root

D.

transverse section of stem

E.

longitudinal section of a leaf

Correct answer is C

No explanation has been provided for this answer.

492.

The eye defect represented in the diagram is?

A.

myopia

B.

hypermetropia

C.

presbyopia

D.

astigmatism

E.

conjuctivitis

Correct answer is A

Nearsightedness (myopia) is a common vision condition in which near objects appear clear, but objects farther away look blurry.

 Light focuses in front of, instead of on, the retina.

493.

Which of the following organs in mammals is not excretory in function?

A.

Liver

B.

Kidney

C.

Pancreas

D.

Lungs

Correct answer is C

No explanation has been provided for this answer.

494.

Gaseous exchange occurs through the following structures in some organisms except 

A.

spiracle and tracheae

B.

alveoli and lungs

C.

stomata and lenticels

D.

chloroplast and plastids

Correct answer is D

No explanation has been provided for this answer.

495.

Which of these factors does not contribute towards the ascent of water in plants?

A.

Root pressure

B.

Capillarity

C.

Transpiration pull

D.

Turgor pressure

Correct answer is D

No explanation has been provided for this answer.