The idea that cells are the basic unit of structure and function of all living things is a(n) A experiment.
B theory.
C hypothesis.
D law.

Distinguish between a transverse wave and a longitudinal wave.

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

Aplane travels 1000 miles in 5 hours .what is the planes average speed?