WAEC Past Questions and Answers - Page 1971

9,851.

The part of the ruminant stomach from which digestive juices secreted is the

A.

Rumen

B.

Reticulum

C.

Omasum

D.

Paunch

E.

Abomasum

Correct answer is E

No explanation has been provided for this answer.

9,852.

Contact insecticides are used to control

A.

Pod borers of legumes

B.

Stem borers of cereal

C.

Leaf beetles of legumes

D.

Peel worm of legumes

E.

Bollworms of cotton

Correct answer is C

No explanation has been provided for this answer.

9,853.

Vegetables propagation can be carried out through the following processes except

A.

Seedling

B.

Cutting

C.

Layering

D.

Grafting

E.

Budding

Correct answer is A

No explanation has been provided for this answer.

9,854.

The expression of a gene in the phenotype irrespective of whether the cell is homozygous or heterozygous is known as

A.

Recessive

B.

Partial dominance

C.

Test-cross

D.

Segregation

E.

Dominance

Correct answer is E

No explanation has been provided for this answer.

9,855.

Thrips cause serious mechanical damages to crops by their

A.

Feeding activities on flowers, leaves and fruits

B.

Laying eggs on plants

C.

Sucking of the sap of crops

D.

Burrowing activities causing damping off in crops

E.

Activities as vectors of bacterial diseases

Correct answer is A

No explanation has been provided for this answer.