Question

multiple choice 1.5 points
gopher tortoises build burrows in sand that are known to be used by 300+ animal species, making them a great example of
an endangered species
a keystone species
an indicator species
a pioneer species

Explanation:

• Endangered species: Refers to species at risk of extinction. The question doesn't mention endangerment.
• Keystone species: Species that have a disproportionately large effect on their environment relative to their abundance. Gopher tortoises' burrows support many species, showing their large - scale environmental impact.
• Indicator species: Species whose presence/absence indicates environmental quality. No indication of environmental quality assessment here.
• Pioneer species: First species to colonize barren environments. Not relevant to the role of burrow - providing.

Answer:

B. a keystone species