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While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?

User Sid Datta
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Basal clade will be Tetrapoda (four limbs). See attachements.
While studying evolution, a student comes across a cladogram that includes clades-example-1
While studying evolution, a student comes across a cladogram that includes clades-example-2
User Muhammad Hewedy
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