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.

1,126.

The cell organelle from which spindle fibers originate during cell division in animal cells is known as

A.

Centrosome

B.

Chromosome

C.

Leucoplast

D.

Lysosome

E.

Ribosome

Correct answer is A

No explanation has been provided for this answer.

1,127.

The blood vessel that supplies blood rich in digested food to the liver is the

A.

Hepatic artery

B.

Hepatic portal artery

C.

Hepatic portal vein

D.

Hepatic vein

E.

Renal artery

Correct answer is C

No explanation has been provided for this answer.

1,128.

Which of these allelic pairs represent a homozygous dominant trait?

A.

TT

B.

Tt

C.

tt

D.

Bb

E.

bb

Correct answer is A

No explanation has been provided for this answer.

1,129.

Which of the following statements is NOT true according to the first and second laws of thermodynamics?

A.

In all energy conversions a certain amount is always lost as heat

B.

In any given ecosystem, the energy transformations can be classified into catabolic and anabolic processes

C.

The energy at one trophic level is the same as the next higher or the one below it

D.

The sun is the ultimate source of energy in the universe

E.

The total energy in an ecosystem is constant

Correct answer is C

No explanation has been provided for this answer.

1,130.

Which organisms are NOT autotrophic?

A.

algae

B.

Ferns

C.

fungi

D.

grasses

E.

mosses

Correct answer is C

No explanation has been provided for this answer.