WAEC Biology Past Questions & Answers - Page 158

786.

The opening of the guard cells of the epidermis in plants is by the process of

A.

osmosis

B.

diffusion

C.

active transport

D.

transpiration

Correct answer is A

No explanation has been provided for this answer.

787.

An animal that possesses scales, nares, and a backbone is likely to be a

A.

toad

B.

lizard

C.

rat

D.

bat

Correct answer is B

No explanation has been provided for this answer.

788.

Which of the following sequences is the correct arrangement of tissues in the anatomy of a young dicotyledonous stem from the inside to the outside?

A.

pith , phloem, cambium, xylem, parenchyma, collenchyma, and epidermis

B.

Xylem, phloem, cambium, cortex, endodermis, collenchyma, and epidermis

C.

Pith, xylem, cmbium, phloem,, collenchyma, parenchyma, and epidermis

D.

phloem, xylem, cambium, cortex, endodermis, collenchyma, and epidermis

Correct answer is C

No explanation has been provided for this answer.

789.

Which of the following pairs of structures in living organisms do not perform similar functions?

A.

Lungs and spiracles

B.

Root hairs and mammalian hairs

C.

Feathers and scales

D.

Contractile vacuole and Kidneys

Correct answer is B

No explanation has been provided for this answer.

790.

Spirogyra is regarded as a multicellular plant because

A.

the cylindrical cells are linked end to end

B.

its cells are linked together by cytoplasmic strands

C.

its cells are large

D.

it is an algae containing a large vacuole

Correct answer is B

No explanation has been provided for this answer.