In a Certain Ecosystem, Field Mice Are Preyed on by Snakes

question 53

Multiple Choice

In a certain ecosystem, field mice are preyed on by snakes and hawks. The entry of wild dogs into the system adds another predator of the mice. The most likely short-term result of this addition is

• A)an increase in snake population.
• B)a tendency for hawks to prey on the dogs.
• C)a reduction in numbers of mice.
• D)migration of the hawks to another ecosystem.

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Definitions:

Ova

The female reproductive cells or eggs in animals and plants, which when fertilized by male gametes, lead to reproduction.

Sperm

The male gamete or reproductive cell involved in sexual reproduction, which can fertilize the female ovum.

Androgen

A type of hormone that plays a role in male traits and reproductive activity; present in both males and females, but in significantly higher levels in males.

Gender-related Behavior

Actions, practices, or behaviors that society considers appropriate for men and women based on their biological sex.