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.

1,166.

Which statement about decomposers is NOT true?

A.

They are saprophytes

B.

They carry on intracellular digestion

C.

They facilitate the cleansing of the environment

D.

They facilitate the recycling of nutrients

E.

They form a link between autotrophs and heterotrophs

Correct answer is B

No explanation has been provided for this answer.

1,167.

Which of these pairs best illustrates a symbiotic association?

A.

dodder on green plants

B.

ferns growing on palm trees

C.

lice on hair of mammals

D.

sea anemone attached to hermit crab

E.

tick found on the body of a cow

Correct answer is D

No explanation has been provided for this answer.

1,168.

The process that ensures that the chromosome number for each specie of organisms remain constant from generation to generation is called

A.

fission

B.

fusion

C.

meiosis

D.

mitosis

E.

oogenesis

Correct answer is C

In preparation for meiosis, a germ cell goes through the interphase, during which the entire cell (including the genetic material contained in the nucleus) undergoes replication.

1,169.

Which of the following sequences best illustrates a food chain in an aquatic habitat ?

A.

algae → fungi → toad → snake

B.

diatoms → tadpole → fish → kingfisher

C.

grass → grasshopper → toad → whale

D.

phytoplankton → fish → snake → kingfisher

E.

zooplankton → tadpoles → fish → kingfisher

Correct answer is B

No explanation has been provided for this answer.

1,170.

The streaming movement of cytoplasm observed in a freshly cut leaf of a water plant is termed

A.

amoeboids

B.

centrifugal motion

C.

ciliary motion

D.

cyclosis

E.

osmosis

Correct answer is D

No explanation has been provided for this answer.