Select the living thing.
pushpin stop sign boulder barnacle
All living things are made up of cells. Plants, animals, and some fungi have many cells. Other living things are made up of just one cell.
All living things need food and water. Water helps living things break down food and remove waste. Food gives living things energy. They use energy from food to grow and change.
All living things sense changes in their environment. Living things might sense changes by seeing, smelling, hearing, or feeling. Living things can respond to the changes they sense.
A pushpin is not a living thing.
Pushpins do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water.
A boulder is not a living thing.
Boulders do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water.
A stop sign is not a living thing.
Stop signs do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water.
A barnacle is a living thing.
Barnacles grow and respond to their environment. They need food and water. Barnacles are made up of many cells.
Barnacles are animals. They are related to crabs and lobsters. Barnacles attach to rocks, boats, and other animals.