Question

what are the two different categories of niches that species can fall into?
amateur and professional
cool and tepid
generalist and specialist

Explanation:

In ecology, the two main categories of niches species can occupy are generalist (species that can thrive in a wide range of environmental conditions and use a variety of resources) and specialist (species that have a narrow range of environmental conditions and resources they can utilize). The other options are irrelevant: "amateur and professional" relate to skill levels in human contexts, and "cool and tepid" relate to temperature descriptions, not ecological niches.

Answer:

C. generalist and specialist (assuming the third option is labeled C; if the options are presented as first, second, third, then "The third option: generalist and specialist")