Which of the following animal Phyla shows deuterostome development?a) Echinodermatab) Annelidac) Arthropodad) Mollusca
Question
Which of the following animal Phyla shows deuterostome development?a) Echinodermatab) Annelidac) Arthropodad) Mollusca
Solution
The animal Phylum that shows deuterostome development is a) Echinodermata.
Deuterostome development is a specific pattern of animal embryonic development that includes radial cleavage and the formation of the anus from the blastopore (the first opening in the early embryo). This type of development is seen in the Echinodermata phylum, which includes animals like starfish and sea urchins.
The other phyla listed - Annelida (segmented worms), Arthropoda (insects, spiders, and crustaceans), and Mollusca (snails, clams, and squids) - all show protostome development, which is a different pattern of embryonic development.
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