In order for the human body to maintain homeostasis, the breakdown of glucose to release energy must be followed by the

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions