WAEC Past Questions and Answers - Page 4160

20,796.

Which of the following is not regarded as a micro-nutrient or trace element for plant growth?

A.

Phosphorus

B.

Zinc

C.

Boron

D.

Silicon

E.

Molybdenum

Correct answer is A

No explanation has been provided for this answer.

20,797.

Even though some flowering plants contain accessory pigments which give them colours they still contain

A.

melanin

B.

chlorophyll

C.

xanthrophyll

D.

carotene

E.

chlorocruorin

Correct answer is B

No explanation has been provided for this answer.

20,798.

What structure in the maize grain stores food?

A.

Radicle

B.

Embryo

C.

Cytoplasm

D.

Seed coat

E.

Endosperm

Correct answer is E

No explanation has been provided for this answer.

20,799.

Which of the following is not correct about a fruit? lt

A.

may contain many seeds

B.

is a mature ovary

C.

is covered by the pericarp

D.

may develop from the receptacle

E.

possesses only one scar

Correct answer is C

No explanation has been provided for this answer.

20,800.

Which of the following specialized structures are stimulated by touch, pressure, pain, heat, and cold?

A.

Receptors

B.

Synapses

C.

Cell bodies

D.

Myelin sheaths

E.

Relay neurons

Correct answer is A

No explanation has been provided for this answer.