Question Detail

ZOO 102 Foundations of Animal Systematics and Phylogeny Objective Question
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Question

Which of these is a diagnostic feature of Bilateria?
Options
A Diploblastic development
B Bilateral symmetry and triploblastic tissues
Correct Answer
C Asymmetrical body plan
D Lack of a nervous system
Correct Answer

Option B is the correct answer.

Detailed Explanation

Bilateria are defined by having bilateral symmetry and being triploblastic (three germ layers). Radiata are diploblastic and radially symmetrical.

Hint

Two key features: symmetry and layer count.

Question Info

Course: ZOO 102
Topic: Foundations of Animal Systematics and Phylogeny
Type: Objective
Difficulty: Not specified
Question 235 of 737
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