This printable crossword puzzle on the topic of Ecology & Evolution has 22 clues. Answers range from 5 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Consists of the parts of the planet in which all life exists.
An assemblage of individuals that belong to the same species and live in the same area.
An assemblage of different populations that live together in an area.
Includes all the organisms that live in a particular place, together with their physical environment
A group of ecosystems that have similar climates and organisms.
Organisms that can capture energy from sunlight or chemicals and use that energy to produce food.
The process in which autotrophs capture light energy and use it to convert carbon dioxide and water into oxygen and sugars.
Organisms that rely on other organisms for their energy and food.
Obtain energy by eating only plants
Eat only animals
Eat both plants and animals
Feed on dead matter.
Break down organic matter.
consume the carcasses of other animals.
A series of steps in which organisms transfer energy by eating and being eaten.
A network of all the food chains in an ecosystem.
Each step in a food chain or food web.
Closed loops powered by the flow of energy.
Chemical substances that an organisms needs to survive.
A nutrient that, in short supply, can limit the productivity of an ecosystem.
Certain bacteria convert nitrogen gas into ammonia
Soil bacteria convert nitrogen compounds called nitrates back into nitrogen gas.