Chapter 1: Living Things

A living thing.

• organism
• oxygen
• cell
• environment

A vertebrate that has hair or fur, is born live, and feeds its young with milk.

• amphibian
• mammal
• reptile
• cell

A vertebrate that spends part of its life in water and part of its life on land.

• mammal
• reptile
• amphibian
• cell

A vertebrate that has scaly, waterproof skin, breathes air with lungs, and lays eggs.

• mammal
• reptile
• amphibian
• cell

A hard covering, or shell, that holds up and protects an invertebrate's body.

• invertebrate
• vertebrate
• cell
• exoskeleton

An animal that does not have a backbone.

• invertebrate
• vertebrate
• cell
• organism

An animal with a backbone.

• cell
• organism
• invertebrate
• vertebrate

A place in which an animal can stay safe.

• environment
• oxygen
• shelter
• energy

The process through which plants make food.

• photosynthesis
• reproduce
• energy
• food

A substance that living things need to grow and stay healthy.

• shelter
• structure
• nutrients
• environment