Question Detail

BIO 102 Unique characteristics of animals 1 Objective Question
Take CBT

Question

Phylum Cnidaria exhibits a 'tissue level' of organization and is characterized by being diploblastic. What does 'diploblastic' mean in this context?
Options
A Possessing a hollow body cavity for digestion.
B Having two distinct body forms (polyp and medusa).
C Developing from two primary germ layers: ectoderm and endoderm.
Correct Answer
D Displaying radial symmetry with two main axes.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The 'General Characteristics of Animals' section defines 'Diploblastic & Triploblastic organization' as having 'two germ layers (ectoderm, endoderm) or three (mesoderm added)'. The 'Phylum Cnidaria (Coelenterata)' section explicitly states, 'Tissue level: Diploblastic (two cell layers: ectoderm, endoderm) with mesoglea in between.'

Hint

Recall the definition of germ layers and how many are present in diploblastic organisms.

Question Info

Course: BIO 102
Topic: Unique characteristics of animals 1
Type: Objective
Difficulty: Not specified
Question 774 of 802
Previous Course Details Next