Question

can anyone explain me evolution.. with the help of example of bettels...

plz help me i will mark it as brainliest....


please help me

Answer 1

long time ago there was a colony of red bettels

Situation 1

one of there offspring gets green colour due to incorrect copying of DNA
green bettels can hide in green bushes from crows easily but red can't easily
so, crows eat red bettels but not green

population varries

Situation 2

one of there offspring gets bike colour
population of red was more than blue
one day an elephant put his foot on that colony and by chance mostly red bettels die not bule

population varries

Situation 3

one day food decreased for them after some generations bid red bettels became small

after a long time food scarcity decreased sufficient food was available now so after some generations that small bettels grew bigger in size again

size varries