This printable crossword puzzle on the topic of Ecology & Evolution has 15 clues. Answers range from 5 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
An organism that must photosynthesize in order to make its own food.
An organism that must eat other things to survive and use energy to function
A community of organisms surrounded by a physical environment
Any ecosystem that is located only on land with a lower availability of water
Any ecosystem that is contained in a body of water (freshwater or saltwater)
Relationships among different organisms in an ecosystem
Forest characterized by precipitation and deciduous trees (lose their leaves in winter)
A dense tropical forest characterized by high precipitation and biodiversity
A grassy flatland in warm regions with few trees
Water that is free of salts; found in ecosystems such as lakes, ponds and rivers.
Water that contains dissolved salts and minerals found in marine habitats
Aquatic ecosystem characterized by salt water; covers nearly ¾ of the planet.
A measure of the amount of dissolved salts in a solution
Runs along a shoreline and is under shallow water (before the deep ocean begins); high diversity
Small organisms that drift in the oceans and other bodies of water; large food source