What are the basic building blocks of the cell membrane called?

Which would be an adaptation in a rainforest, but not in a tundra? a. ability to store water for a long time b. fur that blends in with snow c. strong claws for killing prey d. a beak that can dig into thick trees

Which of these organisms have the greatest amount of cell specialized

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.