Q: - Air reaches the lungs - The lungs absorb the oxygen from the air - The oxygen is transported by hemoglobin - Red blood cells are made of hemoglobin - Blood has a lot of red blood cells - The heart moves the blood throughout the body - Blood can bring the oxygen to different cells in the body. What might be the first step of the process?
A: Air travels into the body

Q: - The fire surrounds the vicinity - The animals are trapped - Those that survive have their habitat destroyed - The survivors must find a new habitat - Conflict with other animals occur. What might be the first step of the process?
A: A forest fire starts

Q: - These pores are called stomata - Water is absorbed by the roots - It passes through vessels in the stem on its way to the leaves - Sunlight is absorbed by a green chemical in the leaves. What might be the first step of the process?
A: Carbon dioxide from the air passes through small pores (holes) in the leaves

Q: - The liver uses chemicals and proteins to treat the blood - The blood is cleaned - Energy is produced - The blood leaves the liver cleaned. What might be the first step of the process?
A:
Blood is sent to the liver