Light travels slowest in high density mediafaster in lower density media, and fastest in low density media . Which wave behavior is observed when light passes through media of different densities? A diffraction

B reflection

C refraction

D interference

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane

The fluid mosaic model of the membrane proposed that membranes