Explain how natural selection could lead to a change in allele frequency leading to a change in the color of the frogs.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

i dont know it at allnow im just getting points at this pint

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

i hope this you

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem