What protein is critical to the function of compact bones?

Which statements are true of a scientific theory but not a hypothesis

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above