This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 7 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The natural home of a plant or animal.
Where plants and animals live on land.
Where plants and animals live in water
Two or more things that depend on each other.
Shell or hard covering on the outside of the body.
An animal that does not have a backbone made of bone.
Skeleton found inside an animal's body.
An animal with a bony backbone.
To spread from one place to another.
Tha variety of plants and animals on the Earth.