Printable ecology crossword puzzle. . the study of interaction between organisms and their environment Ecology Crossword Puzzle Across 3. Ecology crossword puzzle printable. Free printable Ecology and Ecosystem crossword puzzle PDF. Download and print. Customize with your own questions, images, and more. an organism that gets energy by breaking down the remains of dead organisms 6. Study of distribution of plants and animals in different places in the world 258 Nov 2, 2014 ยท This free download includes 6 different crosswords that can be used in your unit on ecology and the environment. Download, print and start playing. You can add your own words to customize or start creating from scratch.