Question

which of the following best describes the term extinction? choose 1 answer: a the death of an individual as a result of it having fewer advantageous traits than others in its natural habitat b the disappearance of a group of organisms because members of the group can no longer survive and reproduce c a danger to a species from environmental changes that are due to human activities

Explanation:

• Option A describes the death of an individual (natural selection or differential survival of an individual), not extinction which is about a group (species) disappearing.
• Option B correctly defines extinction as the disappearance of a group (like a species) because its members can't survive and reproduce, leading to the end of that group.
• Option C describes a threat (like human - caused environmental changes) to a species, not the definition of extinction itself.

Answer:

B. the disappearance of a group of organisms because members of the group can no longer survive and reproduce