Multiple choice

Which of the following gave rise to the struggle for existence?

  1. High reproductive rate and limited resources

  2. Limited resources and inherited variations

  3. Natural selection and limited resources

  4. Natural selection and environmental changes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The struggle for existence arises because organisms produce more offspring than the environment can support (high reproductive rate) but resources like food and space are limited. This leads to competition. Natural selection and variations are consequences or mechanisms, not the root cause.

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