Biology : asked on Paigex3
 10.01.2021

Which statement is supported by this cladogram?

organism d is the most primitive organism.
organism a is a common ancestor of b, c, and d.
organism d is a common ancestor of a, b, and, c.
organism a is the most primitive organism.

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17.02.2022, solved by verified expert
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Organism A is most primitive

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Ans.

The given diagram represents a cladogram, which is used to show evolutionary relationships between various organisms or species.

The intersection points between the lines show the common ancestors, which evolved into different organisms at the end of the branches, as A, B, C, D.

The first branch end (A) represents that most primitive organism, while the last  branch end (D) represents the most recent organism.

Thus, the correct answer is option). 'organism A is the most primitive organism.'

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