The hardy-weinberg principle is that genetic frequencies in a
a. will remain stable from generation to generation.
b. will always be changing.
c. will not be affected by environmental changes.
d. are always in a 3: 1 ratio

A. Will remain stable from generation to generation.

Explanation:

The Hardy-Weinberg Principle tells us that the genetic frequency or genetic composition of a population will be kept in balance (will remain stable) from generation to generation as long as natural selection or a phenomenon that causes a mutation does not act.

To maintain that balance the necessary condition is that there is no migration, that the mating is random, that the population is large enough and that there is no mutation or selection.

[ answer ]

foliated

[ explanation ]

foliation forms in a rock when pressure squeezes the rock together. the rock then has a design of many different color little lines. there are three types of foliated rock. the types are slate, schist, and gneiss. each type of foliated rock is different based on grain size and foliation characteristics. the lines appear when the rock has been under pressure.

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.