All define the cell theory except:
a. cell is the most basic unit of the universe
b. all organisms, including viruses, are composed of cells
c. all cells come from any form of matter
d. yeah, i do not see the answer anywhere

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

Which description provides the best objective summary of the article in the passage?

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.