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Discuss the impacts of human -made pollution on ocean ecosystems.
Intercellular Signals
Chemical or physical signals exchanged between cells, allowing them to communicate and coordinate activities.
Proto-Neurons
Hypothetical precursors to neurons, proposed to be the initial steps in the evolution of the nervous system in early animals.
True Nervous System
A complex network of nerve cells and structures responsible for coordinating and processing sensory and motor information in an organism.
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