Imagine you’re standing on a stepladder and you drop a basketball. The first bounce will be highest each bounce after that will be lower until the ball stops bouncing . Describe the energy changes that take place starting with dropping the ball.

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 take a whiff of your favorite food, you use both? a. motor nerves and your digestive system b. sensory nerves and your immune system c. motor nerves and your skeletal system d. sensory nerves and your respiratory system

The means by which a cell transports large molecules out of the cell is called