The chromosome pair that attaches to fiber stretching is called Centrioles
It must have a medium. It must travel in empty space. Mechanical waves are waves which needs medium of propogation.
Answer:
I believe the answer is A and D.
I am unsure of C.
Answer:
Substances can change phase—often because of a temperature change. At low temperatures, most substances are solid; as the temperature increases, they become liquid; at higher temperatures still, they become gaseous. The process of a solid becoming a liquid is called melting.
Answer:
Oxygen or more precisely, the O-15 isotope.
