Problem: - Animals and plants die in soft soil or mud - Sediment builds up over the remains - The remains decompose, leaving only trace amounts - The remaining parts over the years are replaced with mineral What might be the last step of the process?

A: A fossil is formed

Problem: - Fluid - Waste enters the kidneys - A processing moment in the kidneys let waste and fluid pass - Prevents larger molecules to pass - Fluid goes back to the bloodstream - Bad waste is removed What might be the last step of the process?

A: The final product is turned into urine.

Problem: - Adult mushrooms produce spores - Release them into the air by process of sporulation - Spores are carried by the wind - Land in a hospitable growing environment - The spores germinate into the soil - The mushroom starts growing What might be the last step of the process?

A: The adult mushroom produce spores of its own to repeat the process.

Problem: - The saliva breaks down the chemicals in the food a bit, which helps make the food mushy and easy to swallow - Your tongue helps out, pushing the food around while you chew with your teeth - The esophagus moves food from the back of your throat to your stomach - Strong muscles in the walls of the stomach and gastric juices break down food in your stomach What might be the last step of the process?

A:
Your stomach moves the food into the intestines to complete digestion