Which group of organisms has been most affected by periods of increased glaciations?

Question

Quizplus · Accepted Answer

Marine life has been most affected by periods of increased glaciations as changes in sea levels and water temperatures can have significant impacts on the survival and distribution of marine organisms. On the other hand, autotrophs, land mammals, humans, and land plants may also be affected by glaciations, but not to the same extent as marine life.

Which Group of Organisms Has Been Most Affected by Periods