In snakes, eye color is a sex-linked trait and is found on the X sex chromosome. Red eyes are dominant to black eyes. If a red-eyed male mates with a heterozygous red-eyed female, what percent of their offspring will have black eyes?

Energy stored in the bonds that hold together the atoms and molecules of all substances is called a. kinetic energy. b. electrical energy. c. mechanical energy. d. chemical energy.

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water

How can scientists use the fossil record to find evidence of relationships between different species?