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Question
Which one of the following animals can be called protostomes?
Which one of the following animals can be called protostomes?
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Solution
The correct option is C Earthworm
During embryonic development, protostomes are the animals that undergo protostomy, that is, the blastopore develops into the mouth and the opposite end develops into the anus. The word protostome has a Greek origin, where proto means first and stoma means mouth, hence, the word protostome means 'first-mouth'. Examples of protostomes include earthworms, leeches, slugs, bivalve molluscs, etc.
So, the correct answer is 'Earthworm'.
During embryonic development, protostomes are the animals that undergo protostomy, that is, the blastopore develops into the mouth and the opposite end develops into the anus. The word protostome has a Greek origin, where proto means first and stoma means mouth, hence, the word protostome means 'first-mouth'. Examples of protostomes include earthworms, leeches, slugs, bivalve molluscs, etc.
So, the correct answer is 'Earthworm'.
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