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Natural Selection and Evolution Explained

Evolution is the process of change in species over long periods of time. Natural selection is the mechanism driving evolution, where organisms better adapt

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TL;DR: Evolution is the process of change in species over long periods of time. Natural selection is the mechanism driving evolution, where organisms better…

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 23, 2026

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Natural Selection and Evolution: Evolution is the process of change in species over long periods of time. Natural selection is the mechanism driving evolution, where organisms better adapt

Natural Selection and Evolution Explained Simply

Evolution is the process of change in species over long periods of time. Natural selection is the mechanism driving evolution, where organisms better adapt This is a key Biology concept for Class 10.

Frequently Asked Questions

Is evolution a fact or a theory?

Evolution is both a fact (species have changed over time, supported by overwhelming evidence) and a theory (natural selection is the scientific explanation for how and why this occurs). In science, theories are the highest level of explanation supported by evidence.

Can evolution be disproven?

Yes, if we found no fossil evidence of transitions, if species could not be shown to share common ancestors, or if we observed traits increasing in frequency despite reducing survival. None of these have occurred. Instead, new evidence from DNA consistently supports evolution.

Why do some people reject evolution?

Some people hold religious beliefs about creation that they see as conflicting with evolution. However, many people reconcile evolution with religion by viewing evolution as the mechanism through which creation occurred. Scientific and religious questions address different domains.

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