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3 years ago

Give two examples of a deuterostome and two examples of a protostome.

Biology

1 answer:

Norma-Jean [14]3 years ago

7 0

Answer:

Protostomes: mollusks such as bivalves or gastropods.

arthropods such as crustaceans or insects.

Deuterostomes: echinoderms such as the starfish

hemichordates such as Enteropneusta (marine

vermiculated animals)

Explanation:

The embryonary development of bilateral coelom animals makes a place for the division of two groups: protostomes and deuterostomes. Among protostomes might be mentioned the flatworms, annelids, mollusks, and arthropods. Deuterostomes include echinoderms and chordates, among others.

These two groups differ in their specific development. Protostomes show spiral initial segmentation, and the mouth develops as a first opening near the blastopore. Deuterostomes show radial segmentation, the anus develops near the blastopore and the mouth develops later in another place.

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