Which Animal Phylum Lacks a Network of Nerve Cells for Gathering

question 70

Multiple Choice

Which animal phylum lacks a network of nerve cells for gathering information from the environment?

• A)Porifera - sponges
• B)Cnidaria - jellyfish, sea anenomes
• C)Platyhelminthes -- flatworms
• D)Nematoda - roundworms

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Definitions:

Medical Diseases

Conditions that affect the body's structures or functions and are typically characterized by specific signs and symptoms, often with a known cause.

Sensory Functions

The physiological capacities of organisms that provide data for perception, including sight, hearing, touch, taste, and smell.

Conversion Disorder

A mental condition where psychological stress is expressed through physical symptoms that cannot be explained by medical condition.

Muscle Atrophy

The wasting or loss of muscle tissue, which can occur due to lack of use, disease, or injury.