B replaced because it takes place when water dissolves the original hard parts and replaces them with mineral matter.
I am pretty sure it stays the same
Answer:
1. The bottom graph matches this statement, because it shows a drastic decrease in population.
2. The top graph matches this statement, because it shows most of the population surviving for quite some time.
3. The second graph matches this statement, because it shows a drastic increase in population.
4. This would be the third graph, because it shows a dramatic increase then a stabilization.
Answer:
Can i see the pic? So i can put the answer