Which statements describe infectious diseases and pathogens? Check all that apply. Viruses multiply inside the cells of organisms. Bacteria release toxins that can harm organisms. Infectious diseases are caused by pathogens. Viruses are pathogens, while parasites are not. Fungi like to live in moist places such as soil and human skin

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.