Biology Practice Problems Echinoderms Practice Problems Solution: In vertebrates the blastopore becomes the anus, an...

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Solution: In vertebrates the blastopore becomes the anus, and during cleavage, the regulatory signal in the egg are evenly distributed in the cells. An invertebrate phylum sharing these characteristics is the:a. Arthropodab. Nematodac. Annelidad. Molluscae. Echinodermata

Problem

In vertebrates the blastopore becomes the anus, and during cleavage, the regulatory signal in the egg are evenly distributed in the cells. An invertebrate phylum sharing these characteristics is the:

a. Arthropoda

b. Nematoda

c. Annelida

d. Mollusca

e. Echinodermata