In a Hypothetical Environment, Fish Called Pike-Cichlids Are Visual Predators

question 57

Multiple Choice

In a hypothetical environment, fish called pike-cichlids are visual predators of algae-eating fish (in other words, they locate their prey by sight) . If a population of algae-eaters experiences predation pressure from pike-cichlids, which of the following is least likely to be observed in the algae-eater population over the course of many generations?

• A)selection for drab colouration of the algae-eaters
• B)selection for nocturnal algae-eaters (active only at night)
• C)selection for larger female algae-eaters, bearing broods composed of more, and larger, young
• D)selection for algae-eaters that become sexually mature at smaller overall body sizes
• E)selection for algae-eaters that are faster swimmers

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Definitions:

Experimental Condition

In research, it refers to the specific environment or set of variables that participants are exposed to, allowing scientists to study the effects of these variables on behavior or performance.

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Experimenter's Friendly Smile

A variable in psychological experiments that can influence participants' responses, potentially introducing bias.

Cold Demeanor

A behavior characterized by emotional detachment, aloofness, or a lack of warmth in interactions with others.