If hormones control heart rate, then what do hormones control? Answer choices: - Most plants - Plants growth - rocks - movement - trees - Heart rate - moon - athletes
Heart rate

If most oysters have shells, then what usually has a shell? Answer choices: - an object - humans - animals - density - tortoises - barnacles - h2o - oysters
oysters

If aruler can measure an object's meters, then what can a ruler measure the meters of? Answer choices: - an imaginary distance - a black hole - quarks - loose soil - animals - athletes - sea urchins - an object
an object