A certain savanna grasshopper changes colour from green during the rainy season to brown during...

JAMB 2000

A certain savanna grasshopper changes colour from green during the rainy season to brown during the dry season and black after dry season bush fires. The reason for these colour changes is that the

A. grasshopper is getting older
B. environmental temperature is changing
C. grasshopper is avoiding predation
D. grasshopper is frequently moulting

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Your School's Whatsapp Group - Join Us now

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Correct Answer: Option C

Explanation

Savanna grasshoppers change color to camouflage themselves from predators and to match their surroundings:

Rainy season: Grasshoppers are green in the middle of the rainy season when vegetation is lush.
Dry season: Grasshoppers are brown in the dry season when vegetation is dry.
After a fire: Grasshoppers quickly evolve darker colors to match the altered habitat after a fire. These darker colors disappear as the landscape recovers.

There is an explanation video available below.

Previous Next

Go back to Bio classroom

Report an Error Ask A Question Download App