Q: Fact 1: Grasses supply most of the food consumed by people worldwide.  Fact 2: Grasses are very distinctive plants.  Given the two facts above, most of the food consumed by people worldwide comes from?
A: plants

Q: Fact 1: Skin is used for breathing air by frogs.  Fact 2: Air contains oxygen.  Given the two facts above, what do frogs use skin to breathe in?
A: oxygen

Q: Fact 1: If food is not immediately used by the body for energy then that food will be stored for future use.  Fact 2: Calories are the energy stored in food.  Given the two facts above, what does the body do with calories?
A: Store it for later

Q: Fact 1: Preventing the transfer of heat from an organims 's body causes that organism to keep warm.  Fact 2: Fur or feathers help hold heat in, but some body heat always escapes.  Given the two facts above, what does fur do?
