This printable crossword puzzle on the topic of Ecology & Evolution has 20 clues. Answers range from 5 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
an organism that makes its own food using the sun's energy
the science of identifying, classifying, and naming organisms
the constant movement of carbon between organisms and the environment
kingdom of eukaryotic, multi-celled organisms who can usually move and have a nervous system
diagram that shows how energy is lost as you move through a food web
Father of Taxonomy
organism that must eat other organisms for energy/nutrients
kingdom of single-celled prokaryotic "ancient bacteria"; lives in extreme environments such as hot springs
symbiotic relationship in which one organism benefits while the other is harmed
movement of nitrogen between organisms and the environment; must be "fixed"
single celled prokaryotic bacteria that is in and around us all the time
organisms that break down dead organisms and absorb the nutrients, important for returning nutrients back to the environment
"leftover" kingdom of eukaryotes; can be single or multi-celled; ex: amoebas, paramecium
symbiotic relationship in which both organisms benefit
kingdom of eukaryotic, multi-celled decomposers such as mold and mildew
kingdom that can make it's own food through photosynthesis; multi-celled, eukaryotic
long-term association between 2 or more species; can be beneficial, harmful, or neither
symbiotic relationship in which one organism benefits and the other is unharmed
natural progression from one ecosystem to another
symbiotic relationship in which both organisms benefit