This printable crossword puzzle has 10 clues. Answers range from 4 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
One orgaism called the parasite benefits from living off the body of another organism the host
both organisms benfit
when all members of a species dye out
animal that hunts and eats other animals
animal that is hunted and eaten by predators
a species close to becoming extict
a species close to becoming endangered
factories that burn fossil fuels can release harmful substances into the air
oil spills can harm plants and animals that live in or near the water
trash and garbage are often carelessly discarded polluting the land