In an evolutionary tree, what can it generally mean if two branches are closer?
Answer and explanation
Correct answer: They may share a relatively recent common ancestor
An evolutionary tree is a diagram of inferred relationships among organisms or groups. When two branches join at a node that is relatively recent, the groups may share a more recent common ancestor than groups whose branches join farther back. This indicates relative relatedness, not necessarily identical species or complete similarity. Therefore option A is correct. B denies the purpose of the tree, C overstates the conclusion, and D is biologically false.
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What is the correct answer to this question?
They may share a relatively recent common ancestor
Why is this the correct answer?
An evolutionary tree is a diagram of inferred relationships among organisms or groups. When two branches join at a node that is relatively recent, the groups may share a more recent common ancestor than groups whose branches join farther back. This indicates relative relatedness, not necessarily identical species or complete similarity. Therefore option A is correct. B denies the purpose of the tree, C overstates the conclusion, and D is biologically false.
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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