Coral reefs: were first described by christopher columbus during his voyage to the caribbean island of hispaniola. are most common in the tropical portion of the atlantic ocean basin. can be found at latitudes above 60°. form when underwater volcanoes are thrust upward during a tectonic event. include atolls, barrier, and fringing reefs.

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs