Examine the diagram of the carbon cycle shown above. through which of the following processes is carbon returned to the atmosphere? respiration burning of fossil fuels photosynthesis decomposition of organic waste

How long does it take a skateboarder going 6.0 m/s to come to a complete stop if she slows down at a rate of 2.0 m/s^2

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome

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.