The bell-shaped flowers because the shorter beaked humming birds couldn't eat so they died of starvation.
Answer:
There is no logical answer to this question.
Explanation:
The only one that it could be is that a chicken might eat meat if offered it and that cows have been witnessed eating birds before.
Hardness and luster, I would say, sorry if I am wrong
Answer:
Over time, many species gradually adapted to a more oxygen-rich enviroment, allowing them to survive in shallow water and on land.
The cell membrane. (It also could be cytoplasm because it supports the organelles. But I think it is the cell membrane because it says barrier, and the cell membrane is the cell's barrier between it and the outside of the cell.)
The cell membrane is the outer most layer of the animal cell. It is selectively permeable, so it lets good things in and keeps bad things out. It also helps larger things that the cell needs to get in such as glucose by the process of endocytosis.
