With a mother that is colorblind and a father that is not colorblind, what is the probability that a male child is colorblind? a. 0 b. 1/4 c. 1/2 d. 1

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.

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?