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Lena [83]
3 years ago
8

What evidence links echinoderms, hemichordates and chordates to the same evolutionary lineage?

Biology
1 answer:
sleet_krkn [62]3 years ago
5 0

Answer:

Embryological evidence

Explanation:

Deuterostomes is a group that includes echinoderms, hemichordates, and chordates. Although these animals exhibit a wide variety of body plans, they share a mouth secondarily formed during embryo development, which it is believed to be an evolutionarily derived character present between a common ancestor and all its descendants (i.e., a synapomorphy). This oral cavity is formed by the invagination of the ectoderm layer opposite to the blastopore of the gastrula.

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