Scientists use tissue cultures to study possible medicines that can be used to treat cancer patients. what is one benefit of this procedure? patients do not receive harmful or ineffective medication. the cultured cells are not in their normal environment. doctors know how to treat all types of cancer. one tissue culture can be used for all cancer patients.

The movement of tectonic plates in two different locations is shown below: two blocks labeled location a and location b are shown. at location a the top layer of the block shows two horizontal arrows pointing towards each other. small dunes are shown in the middle between the two arrows. the block labeled b has a vertical line in the middle. on the left of the line there is an arrow pointing down. on the right of the vertical line there is an arrow pointing up which statement is most likely true? subduction may occur in both locations. earthquakes may occur in both locations. subduction may occur in location a only and a volcanic eruption may occur in location b only. an earthquake may occur in location a only and a volcanic eruption may occur in location b only.

Drag each label to the correct location on the image. g organisms adopt different strategies and structures to make sure their offspring it uses. herds young into center of group produces many offspring at once to protect against high predation risk protects offspring until environmental conditions are ideal for growth coo b 13 1994 7 odos si . an . i

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.