Examine the four skeletons.
Indicate which species appears to be best
adapted for swimming underwater for a long
time. Which characters allow the animal to
behave this way?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

What materials must dams have to produce electricity, and what must occur?

In which ways are mercury and venus similar?