In which direction does wave energy travel?
A. up and down
B. north and south
C. with the currents
D. Toward the shore

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

Isotopes of the same element have differ in their