Answer:1. People and plants are similar. They both move things around inside (blood and sap), get nutrients (eating and photosynthesis), and get rid of waste. They differ by people can move around and think, but plants make their own food using sunlight and grow in special ways.2. They don't directly share body parts or anything, but they need plants for air, food, and lots of other things. Plants get a little help from the air we breathe out, but we use way more than they give back.3. Plants are really important. They give us the air we breathe, help keep the planet cool, stop the soil from washing away, and are home to many of other creatures. Also, they give us food and medicine, we really need them to survive.