Describe the Two Hypotheses Related to the Evolution of Nervous

question 10

Essay

Describe the two hypotheses related to the evolution of nervous systems in animals. Be sure to include discussion of the sister groups of animals and mention specifically how sponges and ctenophores play a role in each hypothesis. Feel free to sketch a phylogeny for either or both hypotheses if it helps.

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Definitions:

ATP

An essential nucleotide that serves as the main energy source for many cellular processes, functioning in energy transfer within cells.

Electrons

Subatomic particles with a negative charge, present in all atoms and acting as the primary carrier of electricity in solids.

Hydrogen Ions

Positively charged ions (H+) formed when a hydrogen atom loses its electron, playing a crucial role in acid-base chemistry.

Phosphate Ions

Inorganic chemical species consisting of a phosphorus atom bonded to four oxygen atoms, carrying a negative charge.