This printable crossword puzzle on the topic of Ecology & Evolution has 20 clues. Answers range from 4 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
an organism that is able to form nutritional organic substances from simple inorganic substances
an organism deriving its nutritional requirements from complex organic substances
A non-living part of an ecosystem.
the part of the earth within which life occurs
A living part of an ecosystem
An animal that eats only other animals
A symbiotic relationship in which one organism benefits and the other is unaffected
An organism that obtains energy by feeding on other organisms
All the living and non-living things that interact in an area
A series of events in which one organism eats another
The pattern of overlapping food chains in an ecosystem.
An animal that eats only plants. Organism that obtains energy ONLY from producers
An organism that provides a source of energy or a suitable environment for a virus or for another organism to live
A symbiotic relationship in which both organisms benefit
A symbiotic relationship in which one organism benefits while the other is harmed
An animal that eats both plants and animals
A carnivore that hunts and kills other animals for food and has adaptations that help it capture the animals it preys upon
An animal that the predator feeds upon
Organisms that use sunlight to make food
A close relationship between two organisms in which at least one of the organisms benefits