Asked by Taylor Schmidt on Jun 26, 2024
Verified
What system do the cnidaria have that sponges lack?
A) respiratory
B) nervous
C) circulatory
D) excretory
E) reproductive
Cnidaria
A phylum of aquatic invertebrate animals that includes jellyfish, corals, and sea anemones, characterized by a simple body plan with radial symmetry.
Nervous System
A complex network of neurons that coordinates body functions and transmits signals between different body parts.
Sponges
Simple aquatic animals belonging to the phylum Porifera, characterized by their porous bodies and an ability to filter feed on particles suspended in water.
- Comprehend the fundamental anatomical configurations and mechanisms of movement in cnidarians.
Verified Answer
HW
Harshit WaliaJul 02, 2024
Final Answer :
B
Explanation :
Cnidaria have a primitive nervous system consisting of a nerve net, while sponges lack a nervous system altogether.
Learning Objectives
- Comprehend the fundamental anatomical configurations and mechanisms of movement in cnidarians.