Question Detail

ZOO 102 Foundations of Animal Systematics and Phylogeny Objective Question
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Question

Which of the following is a characteristic of Protostomes?
Options
A The anus develops first from the blastopore
B The mouth develops first from the blastopore
Correct Answer
C They only have two germ layers
D They lack a body cavity entirely
Correct Answer

Option B is the correct answer.

Detailed Explanation

In Protostomes, the first opening (blastopore) becomes the mouth. They are triploblastic and can be coelomates, pseudocoelomates, or acoelomates.

Hint

Remember the Greek meaning: 'mouth first'.

Question Info

Course: ZOO 102
Topic: Foundations of Animal Systematics and Phylogeny
Type: Objective
Difficulty: Not specified
Question 231 of 737
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