Problem: - Blood sugar levels increase after a meal - 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 What might be the last step of the process?

A: Blood sugar goes back to normal.

Problem: - Acid rain flows through soil - Chemicals from the acid rain kill plants and trees - The acid rainwater flows into rivers and streams - The chemicals kill fish - The chemicals kill animals that drink the water - Nitrogen builds up What might be the last step of the process?

A: Nitrogen destroys fish and shellfish populations.

Problem: - Someone is infected with bacteria - That bacteria begins to grow and reproduce inside the cells - The dividing bacteria begin to make toxins - Those toxins damage your cells What might be the last step of the process?

A: Disease symptoms may begin.

Problem: - Air is brought in through the mouth - Passes through the lungs - And into the bronchial tissue - The carbon dioxide is removed What might be the last step of the process?

A:
The lungs bring the oxygen to the rest of the body.