1. Explain 3 ways that firestick farming improved the food supply of Aboriginal people (any of the below 4 responses) 2.Imagine a disease came along that wiped out many termites. What effects do you think this may have on ecosystems

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.