JAMB Biology Past Questions & Answers - Page 356

1,776.

Which sequence represents the correct order of organisms un a food chain?

1. Toad
2. Mucuna
3. Grasshopper
4. Snake
5. Hawk

A.

5 → 4 → 1 → 3 → 2

B.

1 → 2 → 3 → 4 → 5

C.

2 → 1 → 3 → 4 → 5

D.

2 → 3 →1 → 5 →4

E.

2 → 3 → 1 → 4 → 5

Correct answer is E

No explanation has been provided for this answer.

1,777.

The salinity of a brackish enviroment

A.

increases immediately after rain

B.

increases at the end of rainy season

C.

Decreases with increase in microorganisms

D.

 increases during dry season

Correct answer is D

No explanation has been provided for this answer.

1,778.

Which of the following is NOT a characteristic of monocot plants? 

A.

Occurrence of secondary thickening

B.

Parallel venation

C.

Scattered vascular bundles

D.

Floral parts arranged in threes

E.

Perianth is usually insignificant

Correct answer is A

No explanation has been provided for this answer.

1,779.

which of these organisms will have the lowest population in an ecosystem?

A.

 Hawk

B.

Cowpea

C.

Praying mantis

D.

Mouse

Correct answer is A

No explanation has been provided for this answer.

1,780.

Which of the following instruments is used for determining turbidity of water? 

A.

Thermometer

B.

secchi disc

C.

rain guage

D.

Hydrometer

E.

Wind vane

Correct answer is B

No explanation has been provided for this answer.