Hi the answer is circumstantial-situational drug use. Hope this helps.
They are used for them to adapt to the environment
I think the answer is "the older it is"
Reason: I might be wrong but is something (like a shell) gets buried in something (like sand), overtime many things (like dirt, soil, sand, etc.) will be on top of the original. This will make layers. So, the older rock is on the bottom since it has been there for the longest and it gets covered by other stuff (causing the layers).
Hope this helps! :) (If I'm wrong, sorry :( )
Answer:To get the most pink flowers, a red and white rose plant must be mated. Red would have two red alleles--RR and white would have two white alleles--WW. In this cross, all of the offspring would inherit one red allele and one white allele-RW and would be 100 percent pink!
Explanation: