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Describe the evidence for the likely order of appearance of life-cycle stages in the evolution of Cnidarians.Evaluate the validity of conclusions that are drawn from this evidence.
Neurotransmitters
Chemicals released by neurons that transmit signals across a synapse to other neurons or to muscles or glands, influencing mental processing and behavior.
Sensory Systems
The parts of the nervous system responsible for processing sensory information from the environment, including sight, sound, smell, taste, and touch.
Sodium Ions
Positively charged particles of sodium, crucial for various bodily functions, including nerve impulse transmission and muscle contraction.
Sodium Ions
Charged particles of sodium, essential for various physiological processes in the body, including nerve impulse transmission and muscle contraction.
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