Across
- process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starch
- collection of all the organisms that live in a particular place, together with their nonliving environment
- organism that relies on other organisms for its energy and food supply; also called a heterotroph
- step in a food chain or food web
- organism that can capture energy from sunlight or chemicals ans use it to produce its own food from inorganic compounds
- total amount of living tissue within a given trophic level
- network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
- scientific study of interactions among organisms and their environment
- organism that obtains energy by eating both plants and animals
- group of different populations that live together in a defined area
- organism that breaks down and obtains energy from dead organic matter
- organism that feeds on plant and animal remains and other dead matter
|
|
Down
- diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web
- organism that obtains energy by eating only plants
- process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates
- organism that relies on other organisms for its energy and food supply
- group of individuals of the same species that live in the same area
- series of steps in an ecosystem in which organisms transfer energy by eating and being eaten
- group of ecosystems that have the same climate and dominant communities
- part of Earth in which life exists including land, water and air or atmosphere
- organism that obtains energy by eating animals
- group of similar organisms that can breed and produce fertile offspring
|