By What Mechanism Does a Second Male Mating with a Female

question 12

Multiple Choice

By what mechanism does a second male mating with a female gain an advantage in sperm competition in some insects?

• A) The second male's sperm physically dislodge the first male's sperm and insert themselves in place.
• B) The accessory fluids from the second male's semen is able to displace stored sperm from competing males.
• C) The second male will have larger testes and so produce larger numbers of sperm.
• D) Answers A and B are both correct.

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Definitions:

Subsistence groups

Communities or social groups that rely on natural resources and their immediate environment for their food, shelter, and clothing, often through hunting, gathering, fishing, or subsistence agriculture.

Distribution

The way in which something is shared out among a group or spread over an area.

Consumption

The process by which goods and services are utilized by individuals or groups to satisfy personal or collective needs or desires.

Production

The process of creating, manufacturing, or producing goods, services, or information, often involving a combination of labor, materials, and capital.