Discuss the Evidence for the Phylogenetic Placement of Ctenophores and Cnidarians

question 15

Essay

Discuss the evidence for the phylogenetic placement of Ctenophores and Cnidarians in the metazoan tree.

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Definitions:

Opponent Process Theory

A model in psychology and neurology that describes the way color perception is governed by the activity of antagonistic neural mechanisms.

Smoking Cigarettes

The act of inhaling and exhaling the smoke produced by burning tobacco contained in cigarettes, which is a common cause of several health problems, including lung cancer and heart disease.

B State

In behavioral science, this might refer to a specific condition or state of being that influences an organism's behavior, though its exact meaning can vary depending on context.

A State

A condition or situation at a specific time, which can refer to emotional states, physical states, or states of matter.