What is natural selection?

Natural selection is part of Charles Darwin's theory of evolution.
It is when a species adapts to changes in the environment, allowing them to survive. If natural selection doesn't favour a species, it will become extinct as it cannot survive in the environment.
It is the idea of the 'survival of the fittest' - meaning species who have evolved more useful adaptations, like webbed feet or camouflaged skin, are more likely to survive, breed and pass on their adaptations to their offspring.Eventually this adaptation will become more common in the gene pool, allowing the species to adapt and survive.

AJ
Answered by Amy J. Biology tutor

2932 Views

See similar Biology KS3 tutors

Related Biology KS3 answers

All answers ▸

What are the similarities and differences between an animal and a plant cell?


Explain the process of photosynthesis in plants.


What do we call a group of cell which work together to carry out a specific function?


What are the main differences between an eukaryote and a prokaryote cell


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning