Answer:
the fish experienced an evolutionary change because of genetic drift
Explanation:
The best way may be is going over the notes on the chapter you were doing. Or going over the chapter once or twice.
Our elbow bends all the time, we bend it when we pick up things, when we eat, when we do mostly everything. Cows on the other hand dont pick up food with there feet, they use there mouths, and they probably only bend when they are walking.
Answer:
converts electrical energy to mechanical energy
Explanation:
Veins provide support for the leaf and transport both water and minerals (via xylem) and food energy (via phloem) through the leaf and on to the rest of the plant.