Horse breeders often mate horses that have special traits that they will pass on to offspring. this is an example of
survival of the fittest
evolution
artificial selection
natural selection

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false

Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.