This printable crossword puzzle on the topic of Ecology & Evolution has 20 clues. Answers range from 4 to 21 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
– a large group of the same organism which reproduce with each other
– a distinguishing characteristic or quality
– an individual animal, plant or single-celled life form.
– the way an organism looks, behaves, or is built that best suits it for survival
– hide or disguise
– genetic change that causes new and different characteristics
– a particular group of organisms living in the same area
– coming after, the next generation
– the variety of life in the world, a habitat, or an ecosystem
– a large quantity
– having no living members
– the range of conditions an organism can withstand
Occurs quickly
Occurs slowly over time
a period of abnormally low rainfall, leading to a shortage of water
the introduction of harmful substances or products into the environment:
atmospheric pollutants combined with fog in an unhealthy or irritating mixture.
a change in global or regional climate patterns
the process of making an area more urban.
the action of clearing a wide area of trees.