Which two statements must be true to define a species? O A. Organisms must be able to produce offspring that can also
reproduce.
O B. Organisms must be found in the same place on Earth.
O C. Organisms must be a common ancestor to another organism.
OD. Organisms must have very similar DNA.
SUBMIT

Calculate the number of molecules present in 0.750 mol of mgo.

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".