Chordates Are Animals That Have,during at Least Part of Their

question 84

Short Answer

Chordates are animals that have,during at least part of their life cycles,a dorsal hollow nerve chord,a(n)____________________ and ____________________.

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Definitions:

REM Sleep

A unique phase of sleep characterized by rapid eye movements, increased brain activity, and vivid dreaming, considered important for emotional and cognitive health.

Sleep-Waking Cycles

Refers to the biological rhythms that dictate our periods of wakefulness and sleep, typically following a 24-hour cycle aligned with day and night.

Young People

Individuals in their youth, typically ranging from teenagers to those in their early twenties, often characterized by periods of growth and development.

Observable Behavior

Actions or reactions of an organism that can be noticed and measured by others.