Biology questions and answers

Biology Questions and Answers

How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.

416.

The diagram below is an illustration of the longitudinal section of a plant organ. Study to answer the question below.

Food is stored in the part labeled

A.

I

B.

II

C.

III

D.

IV

Correct answer is B

  • An onion bulb is a type of plant storage organ.
  •  The bulbs are composed of shortened, compressed, underground stems surrounded by fleshy modified scale (leaves) that envelop a central bud at the tip of the stem.

417.

The network of double membranes that conveys materials through the cytoplasm is the 

A.

plasma membrane

B.

nuclear membrane

C.

mitochondrion

D.

endoplasmic reticulum

Correct answer is D

No explanation has been provided for this answer.

418.

The organism with spiral chloroplasts and nucleus suspended by cytoplasmic strands is

A.

Volvox

B.

Spirogyra

C.

Paramecium

D.

Euglena

Correct answer is B

Spirogyra is a filamentous charophyte green alga of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is characteristic of the genus.

419.

Use the following Classes of Arthropoda to answer the question below

I. Crustacea II. Insecta III. Arachinda IV. Chilopoda

Which of the classes is characterised by the possession of two pairs of antennae?

A.

I

B.

II

C.

III

D.

IV

Correct answer is A

No explanation has been provided for this answer.

420.

Use the following classes of Arthropoda to answer the question below.

I. Crustacea II. Insecta III. Arachinda IV. Chilopoda

Which members of the classes live mainly in an aquatic habitat?

A.

I

B.

II

C.

III

D.

IV

Correct answer is A

No explanation has been provided for this answer.