This printable crossword puzzle on the topic of Ecology & Evolution has 11 clues. Answers range from 6 to 11 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
a living organism
of the water
all the interacting populations in a specified area
an organism that consumes parts of dead organisms
the surroundings of an organism including living and nonliving factors
one single organism
an immature nymphal stage of an insect
all the individuals of one kind in a specifed area at one time
an organism that is able to produce its own food
a kind of organism
third level