What must be included when describing the displacement of an object?
O measurement and direction
O direction and speed
O total distance and position
speed and total distance
O
SP

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

What type of pollution does household garbage cause

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.