The traits of widows peak hairline is dominant in humans over a straight hairline. W=dominant allele, w=recessive allele How many possible genotypes are there for the phenotype of widow's peak, and what are
they?

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.

Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth

How many types of rock can form from the rock cycle