Some Large Fish Allow Smaller Fish to Swim Inside of Their

question 72

Multiple Choice

Some large fish allow smaller fish to swim inside of their mouths without eating the smaller ones.The smaller fish____________________________get to feed inside the larger fish's mouth,the larger fish gets parasites removed from its teeth.This is an example of

• A)reciprocal altruism.
• B)kin selection.
• C)audience inhibition.
• D)the cost-reward model.

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Definitions:

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, controlling the movement of substances in and out.

Cytoplasm

The jelly-like material within a cell, excluding the nucleus, where various cellular processes occur, including enzyme reactions and nutrient processing.

Nucleus

The central and most important part of an object, movement, or group, forming the basis for its activity and growth; in cells, it is the membrane-bound structure that contains the chromosomes and controls the cell's activities.

Nucleolus

A structure found within the nucleus of the cell.