In Group Selection

question 21

Multiple Choice

In group selection,

• A) altruism cannot evolve.
• B) fitness is a property of the individual.
• C) fitness is a property of the group.
• D) the concept of the ESS does not apply.
• E) none of the above

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Definitions:

Gastrovascular System

A simple digestive system that has a single opening through which food is ingested and waste material is excreted, found in certain invertebrates like cnidarians and flatworms.

Flatworm

Bilaterally symmetrical invertebrate with organs but no body cavity; for example, a planarian or tapeworm.

Simple Diffusion

The movement of molecules from an area of higher concentration to an area of lower concentration without the need for energy or a carrier.

Digestive System

The series of organs and glands responsible for the breakdown and absorption of food to extract necessary nutrients.