Quiz on Living Things and Environment

Why do living things need food?

• To stay warm

• To get energy and grow

• To sleep

• To get shelter

What are heterotrophs?

• Plants that make their own food

• Animals that make their own food

• Animals that depend on eating other things for food

• Animals that only eat plants

What process do plants use to make their own food?

• Respiration

• Photosynthesis

• Digestion

• Germination

What gas do humans breathe in that is needed for respiration?

• Nitrogen

• Oxygen

• Carbon dioxide

• Water vapor

What happens to carbon dioxide in the environment?

• Humans breathe it in

• Plants use it to make food

• It is not needed by living things

• It is used for photosynthesis by animals

Why is water important for living things?

• It helps digest food

• It makes plants grow

• It keeps us from getting too hot or cold

• All of the above

How much water do animals like camels need to survive?

• A little bit every day

• They need to drink water all the time

• They can survive a long time without water

• They only need water during the winter

What does the sun do for Earth?

• It helps plants make food

• It keeps Earth warm

• It helps living things grow

• All of the above

What would happen if there were no sunlight?

• Plants would still grow

• Earth would be too cold for living things to survive

• Animals would still be able to live

• The Earth would get hotter

Why do living things need shelter?

• To stay safe from the weather and predators

• To keep the sun out

• To stay warm at night

• To store food