A species is a set of individuals who can mate and produce _________ offspring.

Question

BlackTom AI · Accepted Answer

The question asks about a defining criterion of a species: what kind of offspring result from mating within the species.
Option 1: 'Helpful' — This is not a biological criterion for species boundaries. Offspring usefulness or helpfulness is subjective and not a measure used to define species.
Option 2: 'Multiple' — This term has no relevance to the biological concept of reproduction or offspring viability; it does not describe the outcome of mating.
Option 3: 'Infertile' — If offspring were infertile, they could not propagate the species, so this would not meet the typical species definition of members that can give rise to a continuing lineage.
Option 4: 'Single' — The notion of a single offspring does not define a species. Species concepts concern the ability to produce offspring that can themselves reproduce, not the number of offspring produced.
Option 5: 'Fertile' — This aligns with the standard biological species concept: individuals that can mate and produce offspring capable of reproducing themselves. The fertility of offspring is what allows the lineage to continue across generations.

11:375:101:01 INTRO ENV SCIENCE Exam #1

A species is a set of individuals who can mate and produce _________ offspring.

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