Genes that actively control the expression of a trait are referred to as:

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

Which of the following explains why a tree is often used as a model to represent the principle of common descent