Plants and animals have _______ that help them get what they need to survive.
structures
A place in which an animal can stay safe is called a ______.
shelter
A thin, hard covering that surrounds certain animals' bodies is called an ________.
exoskeleton
Everything that surrounds a living thing is called an _______.
environment
An animal that has no backbone is called an ________.
invertebrate
Animals that have backbones are called ______.
vertebrates
The process by which a plant makes food is called _____.
photosynthesis
Vertebrates that have scaly skin and breathe through lungs are called ______.
reptiles
All living things are ____.
organisms
The building blocks of life are called ____.
cells