Fill in the blank.
uses laboratory methods to look at genes and can be used to identify increased risks of health problems, to choose treatments, or to assess responses to treatments

a.) genetic modification
b.) gene therapy
c.) selective breeding
d.) genetic testing

How water is moving through the ecosystem ?

Where does the esophagus lead to in a frog?

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.