- The oxygen travels into the body - Breaks down into glucose - Carbon dioxide is produced by the glucose breakdown - The carbon dioxide is exhaled out of the body through the nose or mouth. What might be the first step of the process?
Ans: A person takes in oxygen through their nose or mouth

- Cells in the pancreas release insulin - Insulin causes the body to absorb glucose from the blood - Blood sugar goes back to normal - Blood sugar is too low - The amount of insulin goes down - Cells in the pancreas release glucagon - The liver turns stored glycogen into glucose - The liver releases the glucose into the blood - Blood sugar goes back to normal. What might be the first step of the process?
Ans: Blood sugar levels increase after a meal

- Embryo is C - Embryo grows and develops into a fetus inside the woman's womb - The fetus is born - Begins to grow and develop through infancy and childhood - In the teenage years the human experiences puberty - Reaches sexual maturity - At 18 the human becomes an adult - Adult may procreate continuing the cycle. What might be the first step of the process?
Ans: A man and woman mate

- The water tank over the boiler is heated - Creates steam - The steam is funneled to the piston - Piston uses the steam as energy - The piston causes the crankshaft to move. What might be the first step of the process?
Ans: Coal is heated in the boiler