What are minerals that are valued because they contain large amounts of a useful element are called

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.