What Is the Only Type of Chemical Signal That Is

question 3

Multiple Choice

What is the only type of chemical signal that is not intended to alter the physiology of the animal producing that signal?

• A)neural
• B)paracrine
• C)neuroendocrine
• D)pheromones
• E)only A and C

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Definitions:

Gain Water

The process through which cells absorb water, which can happen in a hypotonic solution environment, leading to cell swelling or bursting in severe cases.

Cell

The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.

Turgor Pressure

The pressure of water pushing the plasma membrane against the cell wall of a plant or bacterium, providing rigidity to the cell.

Hypertonic

A solution that has a higher solute concentration than the cytoplasm of a cell, causing cell shrinkage.