What 2 factors can block the much needed sunlight to the algae living on coral?

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

The process by which natural forces move weathered rock and soil brim one place to another is called

Match each phylum or class to its correct characteristic