What conditions are needed for evolution by natural selection to arise?

Evolution by natural selection arises when these three properties are present in a system

  • Heredity - offspring resemble their parents in discrete characteristics.

  • Variation - there are heritable differences between individuals in the population.

  • Limited resources / overproduction - the presence of more offspring than the resources need to support them produces differential survival and selection pressure.

RA
Answered by Richard A. Biology tutor

2714 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What are the key steps in the light dependent reaction of photosynthesis?


How does water play a vital role in sustaining life?


Describe the process of DNA replication


What is an enzyme?


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences