Q: What is the missing first step of the following process: - Mix the flour, sugar, egg, and water to make batter - Pour the mixture into a cake pan - Place the cake in the oven to cook - Take the cake out when it is cooked through - Let the cake cool - Serve the cake -
A: Gather the ingredients for the cake

Q: What is the missing first step of the following process: - The oxygen travels to the lungs through the windpipe - The air sacs in the lungs send the oxygen into the blood stream - The carbon dioxide in the blood stream is transferred to the air sacs - The lungs expel through the nose or mouth back into the environment.
A: You breathe oxygen into your body through the nose or mouth

Q: What is the missing first step of the following process: - 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.
A: Blood sugar levels increase after a meal

Q: What is the missing first step of the following process: - The lungs expand - Air is pulled from outside the body, into the lungs - The membranes in the lungs collect oxygen molecules - Oxygen is transferred to red blood cells - Red blood cells distribute oxygen throughout the body -
A:
The diaphragm contracts