Assume as what happens in a pot of water as it get heats.. hot becomes less dense, rises and cools, becoming more dense then sinks- that's called CONVECTION
So D- is the right answer
Answer:
A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.
Answer:
1=T
2=F(in the mitochondria)
3=F (i am not sure about this one.)
Explanation:
Hope this helps