The front legs of a cat and the arms of a human share a bone structure that suggests a common evolutionary lineage. Therefore, these skeletal structures are .

Which of these is not a function of some membrane proteins ? a.allowing polar molecules to enter the cell b.recognizing other types of cells c.receiving messeges from other cells b.carrying messages to oher cells

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

Cells are adapted to preform specific functions. which of the following terms refers to this capability?