Evidence that glaciers once covered an area might include __________.

What is most likely to be found at fracture zones?

Geologists consider plate tectonics to be the grand unifying theory of geology because it __________.

A great boost in seafloor exploration and a greater understanding of seafloor bathymetry were the result of __________.

As shown below, Wegener proposed continental drift after he observed evidence from fossils, glacial deposits, and the fit of the continents that suggested all of the continents were once __________.

Cancer develops because of uncontrolled cell division.

The appearance of cancerous cells differs from normal cells. If you were to view cancerous cells under the microscope, you would notice enlarged __________.

Energy nutrients can be found in a variety of foods. From the list below, select the foods that would provide the body with the most protein. (Check all that apply.) Remember, plants have protein, too!

If tumor cells invade other tissues, that is classified as a malignant tumor.

Failing to respond to the signals that control normal cell behavior and growth, cancer cells grow and divide in an uncontrolled manner, invading normal tissues and organs and eventually spreading throughout the body.