Which factor do biologists calculate when they determine whether a population is in hardy-weinberg equilibrium?
mutation rate
genotype frequencies
number of phenotypes
rate of migration

~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

Some substances but not other can cross the (blank) membrane of a cell