What form if carbon exists in the atmosphere

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur

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.

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations