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.
region of coastline where rivers or streams flow into the ocean
the non living part
gradually changing into another
the variety of organisms in an biome
a hot and dry biome
geographical area
shedding of leaves annually
the living part
underground structure made from exoskeleton of coral
stable community
aquatic biome where soil is wet
growing algae and becoming rich in nutrients
biome which is cold and treeless
a biome dominated by grass
region between tropics and polar regions
the first species
biome with evergreen trees
the amount of salt dissolved in water
similar structure produces fertile offspring
existing ecosystem is disturbed