PLS HELP! i will give brainliest Which association correctly links the time period with the location of the fossils?
Pennsylvanian → eastern and western Virginia
O Cambrian → throughout southern Virginia
Tertiary → eastern Virginia
Quaternary → eastern and western Virginia

*will mark brainliest for first correct answer* which of the following is most likely to affect the biodiversity of a park ecosystem? a. less rain than usual for several months b. ongoing pollution from a nearby factory c. park rangers plant a new type of tree d. disease wipes out an entire population

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?

The variation among individuals, on which natural selection acts