NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A lion makes more cubs than the Sahara Desert can support (there’s not enough prey around), so only a few of the cubs survive to become adults. They live on to reproduce. Of the four parts of natural selection, which is this an example of?
A
overproduction
B
genetic variation
C
selection
D
adaptation
Explanation: 

Detailed explanation-1: -A lion makes more cubs than the Sahara Desert can support (there’s not enough prey around), so only a few of the cubs survive to become adults. They live on to reproduce.

Detailed explanation-2: -Individuals with adaptive traits-traits that give them some advantage-are more likely to survive and reproduce. These individuals then pass the adaptive traits on to their offspring. Over time, these advantageous traits become more common in the population.

Detailed explanation-3: -Tigers with larger paws hunt deer more easily to survive in an environment where resources are limited. As a result, the tigers with larger paws are “selected” (the larger paws become more common in the next generation of tigers).

Detailed explanation-4: -After the Beagle returned to England in October 1836, Darwin began reflecting on his observations and experiences, and over the next two years developed the basic outline of his groundbreaking theory of evolution through natural selection.

There is 1 question to complete.