Question Detail

ZOO 102 Practice Questions ZOO 102 5 Objective Question
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Question

38. Bilaterally symmetrical, triploblastic eucoelomates are divided into protostomes and deuterostomes based on
Options
A Body size
B Differences in early embryonic development, specifically which opening of the digestive cavity develops first
Correct Answer
C The presence of a notochord
D The number of legs present
Correct Answer

Option B is the correct answer.

Detailed Explanation

Protostome vs deuterostome cleavage and gastrulation fate determines whether the blastopore forms the mouth first or second.

Hint

Embryonic blastopore fate: mouth vs anus first.

Question Info

Course: ZOO 102
Topic: Practice Questions ZOO 102 5
Type: Objective
Difficulty: Not specified
Question 557 of 737
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