JAMB Biology Past Questions & Answers - Page 98

486.

Plants that survive in marine habitats are called

A.

halophytes

B.

hydrophytes

C.

mesophytes

D.

xerophytes

Correct answer is A

Halophytes are plants that live successfully in a marine (salt water) habitat.

487.

Another name for a fertilized egg is a

A.

placenta

B.

zygote

C.

foetus

D.

ovum

Correct answer is B

When the male sperm and female egg come together, it becomes a fertilized egg or cell i.e. a zygote.

488.

Which of the following is not a pest of crops?

A.

Bird

B.

Rodent

C.

Bed bug

D.

Grasshopper

Correct answer is C

Bed bugs do not affect plants. They only affect animals.

489.

Snails belong to the phylum?

A.

Annelida

B.

Mollusca

C.

Echinodermata

D.

nematoda

Correct answer is B

The class Gastropoda (in Phylum Mollusca) includes the groups containing snails and slugs.

490.

The basic functional unit of the kidney is the

A.

nephron

B.

bowman’s capsule

C.

glomerulus

D.

loop of henle

Correct answer is A

The nephron is the part of the kidney that performs osmoregulation in humans i.e. the nephron takes care of the formation of urine.