This printable crossword puzzle on the topic of Ecology & Evolution has 14 clues. Answers range from 4 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
linear sequence of organisms which starts from producer organisms and ends with decomposer species
a connection of multiple food chains
Autotroph; Make their own food/energy
Heterotroph; Eats other organisms for food/energy
They exist on every trophic level. They are mainly bacteria that break down dead organisms to support producers and consumers
Very small plant organisms that drift with water currents and, like land plants, use carbon dioxide, release oxygen and convert minerals to a form animals can use.
Tiny shrimp-like animals that drift with water currents.
when two or more organisms rely on the same environmental resource
behavior of one animal feeding on another
the close relationship of two dissimilar organisms
a symbiotic relationship where both organisms benefit
a symbiotic relationship where one organism benefits and one does not benefit but is unharmed
a symbiotic relationship where one organism benefits and one is harmed
The organism that is being harmed in an parasitism relationship.