Classification

question 61

Multiple Choice

Classification. Respond to the following statements in reference to the five animal phyla listed below.
-Members of this group have a brain with nerve cords,have a saclike or branched gut,and lack a circulatory system.

• A)Porifera
• B)Cnidaria
• C)Platyhelminthes
• D)Nematoda
• E)Annelida

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Definitions:

Retinex Theory

suggests that color perception is not solely based on the wavelengths of light reaching the eye but also involves an active processing of visual information by the brain to maintain color constancy under different lighting conditions.

Cutaneous Senses

The sensory systems associated with the skin that detect touch, temperature, and pain.

Acceleration

The rate at which an object’s velocity changes with time, often measured in meters per second squared (m/s²).

Pressure

the feeling of psychological strain and stress, often arising from external sources that demand high performance or coping.