What does common ancestor mean?
Answer and explanation
Correct answer: An older organism from which related organisms evolved
A common ancestor is an earlier organism or ancestral population from which two or more related groups gradually evolved. It need not look exactly like any living descendant, because populations change over many generations. Similar structural features, fossils and genetic evidence can support this inference. Therefore option A gives the correct meaning; the other options either deny that the ancestor was living or incorrectly restrict the term to present organisms or seeds.
Frequently asked questions
What is the correct answer to this question?
An older organism from which related organisms evolved
Why is this the correct answer?
A common ancestor is an earlier organism or ancestral population from which two or more related groups gradually evolved. It need not look exactly like any living descendant, because populations change over many generations. Similar structural features, fossils and genetic evidence can support this inference. Therefore option A gives the correct meaning; the other options either deny that the ancestor was living or incorrectly restrict the term to present organisms or seeds.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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