Mass extinctions are more wide spread while background extinctions happen to creatures that just cant survive on earth very well.
Peer-review helps validate research ,establish a method by which it can be evaluated
Answer:
1=T
2=F(in the mitochondria)
3=F (i am not sure about this one.)
Explanation:
Hope this helps
Remember, diffusion is when molecules move from an area of HIGH concentration to an area of LOW concentration. Therefore, in this example the molecules on the outside, where the concentration is high, will diffuse to the inside of the circle, where the concentration is low.
