This printable crossword puzzle on the topic of Ecology & Evolution has 20 clues. Answers range from 4 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
A hole in the ground made or used by an animal
A small freshwater or marine animal
A type of parasitic flatworm
To feed on growing grass or herbs
A long slender parasitic worm also called a nematode
A living plant or animal on which a parasite lives
A stage of an insects life between egg and adult
The series of changes a living thing goes through from birth to death
To shed the outer layer skin
To cause a loss of the ability to control the muscles
An animal or plant that lives on or inside another animal or plant
A parasite that kills its host
A poisonous chemical used to kill insects, rats, and fungi that can damage plants
An animal that hunts other animals for food
The process in which an insect changes from a larva to an adult
To gather or fly close together in a large group
A parasitic flatworm
A poisonous liquid produced by animals
A germ that infects living things and causes diseases
A body part needed to stay alive