Two rabbit species, X and Y, live in an Arctic environment that is also populated by wolves. Species x turns white in the winter and brown in the spring. Species y stays brown all year. The population of species X has slowly been increasing over the population of
species Y. What is most likely causing this population change?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments