WAEC Biology Past Questions & Answers - Page 190

946.

What stage is illustrated by the diagram?

A.

lnterphase

B.

Prophase

C.

Metaphase

D.

Anaphase

E.

Telophase

Correct answer is C

No explanation has been provided for this answer.

947.

Which of the following effects would desertification have on the
ecological balance represented in the diagram above? The calorific
value of the energy

A.

.10 x 104k cal obtained from the sun would decrease

B.

10 x 104k cal obtained from the sun would increase

C.

6 x 104k cal obtained at level I would increase

D.

1 x 104k cal obtained at level V would increase

E.

3.5x 104k cal obtained at level II would increase

Correct answer is C

No explanation has been provided for this answer.

948.

What phenomenon in ecosystem does the diagram illustrate?

A.

Pyramid of numbers

B.

Food web among organisms

C.

Pyramid of energy

D.

Pyramid of biomass

E.

Evolutionary trend in organisms

Correct answer is C

No explanation has been provided for this answer.

949.

Which of the following processes is not evident from the drawing? 

A.

Lining up of the chromosomes at the equatorial plate

B.

Centromere attaching a pair of chromatids to a spindle fibre

C.

Chromatids held by centromere

D.

Absence of nuclear membrane

E.

Chromatids moving to the poles

Correct answer is C

No explanation has been provided for this answer.

950.

The stage of mitosis represented in the diagram is known as the

A.

telophase

B.

metaphase

C.

anaphase

D.

interphase

E.

prophase

Correct answer is B

No explanation has been provided for this answer.