According to cell theory, all cells carry out the functions needed to sustain life. that means all cells must contain
a) dna.
b) a nucleus.
c) organelles.
d) a control center.

What form of anesthetic was used for field surgery

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?