This printable crossword puzzle on the topic of Ecology & Evolution has 24 clues. Answers range from 7 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
non living factors that effect an organism
an organism that eats only meat
the number of people, other living organisms, or crops
a group of interdependent organisms of different species growing or living together in a specified habitat
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
an animal that feeds on dead organic material
The ecological role and space that an organism fills in an ecosystem.
The progressive replacement of one dominant type of species or community by another in an ecosystem until a stable climax community is established.
the scientific analysis and study of interactions among organisms and their environment
to represent the flow of food energy and the feeding relationships between organisms
A graphical model showing the interconnecting food chains in an ecological community
an organism that eats only plants
Non-native species disrupting and replacing native species
A factor present in an environment that controls a process, particularly the growth, abundance or distribution of a population of organisms in an ecosystem.
both benefits
an organism that eats plants and animals
the amount of organisms of the same species in an area
one is predator, one is prey
an organism that makes its own food
A position in a food chain or Ecological Pyramid occupied by a group of organisms with similar feeding mode.
a biological community of interacting organisms and their physical environment
the increasing concentration of toxic substances within each successive link in the food chain.
a species that has a disproportionately large effect on its environment relative to its abundance
An organism that generally obtains food by feeding on other organisms