Storing nutrition and keeping warm, A good example would be walruses since they have no fur to keep warm
Habitat, community, ecosystem,biome, biosphere
The Cell, the fundamental structural unit of all living organisms. Some cells are complete organisms, such as the unicellular bacteria and protozoa, others, such as nerve, liver, and muscle cells, are specialized components of multicellular organisms. In another words, without cells we wouldn't be able to live or function correctly.
Answer:
Oil is known as Petroleum.