1. The first organisms on Earth were
mostly likely

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy

Which example best describes a reflex action? a. eating food when hungry b. coughing when the throat is irritated c. bending down to lift a heavy object d. going for a walk outside