This printable crossword puzzle has 28 clues. Answers range from 5 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
The science of the relationships between organisms and their environments.
A group of people living in the same locality and under the same government.
An ecological community together with its environment, functioning as a unit.
A major regional or global biotic community, such as a grassland or desert, characterized chiefly by the dominant forms of pl
Of or having to do with life or living organisms.
Nonliving.
The number and variety of species found within a specified geographic region.
A species that has an unusually large effect on its ecosystem
Organisms that get their energy from nonliving resources
Organisms that get there energy by eating other living things.
another name for consumers
the process by which an organism forms carbohydrates using chemicals, rather than light, as an energy source.
A sequence that links species by their feeding relationships
Organisms that eat only plants.
Organisms that eat only animals.
Organisms that eat both plants and animals
Organisms that eat dead organic matter
Eats dead organisms
A consumer that primarily eats one specific organism
Consumers that have a varying diet
Level of nourishment in a food chain
A model that shows the complex feeding relationships
Known as the water cycle
The movement of a particular chemical through the living and the nonliving parts of an ecosystem
A process in which certain types of bacteria convert gaseous nitrogen into ammonia
A measure of the total dry mass of organisms in a given area.
a diagram that compares energy used by producers, primary consumers, and other trophic levels