Which adaption would be most beneficial to mammals of both the taiga and marine aquatic biomes 1 . the ability to store food and water for hibernation 2. a layer of fur that reflects sunlight 3. a thick layer for insulation 4. the ability to excrete excess salt through glands

3. A thick layer of insulation

Explanation: Taiga is one of the coldest biome of the earth. It covers the regions of Canada, and Alaska. Both taiga and marine mammals exhibit adaptations which facilitates the survival of the organisms in the harsh winter conditions. A thick layer of insulation will protect the mammals from drastic winter environment and in cold water. It will help the mammals to maintain the homeostasis.

straight or amphibians are homeothermic to thermal