In terms of function, bird wings are used to flap transversely, whereas butterfly wings are used to flap laterally. In terms of structure, bird wings are filled with hollow bones for easier flight, whereas butterfly wings are structured by scales and tiny hairs.
The have similar problems because since the cell has grown too large, it takes away nutrients that other cells need to survive. This is similar to too many users on a wireless network because with too many users, their is not enough network to supply each device on the wireless network.
B.)
Weathered rock
I hope this helped
Passive transport DOES NOT need energy(ATP), while active transport does.
