Across
- 2. All non-domesticated animals.
- 6. The single resource, such as food, shelter, or water, which is not in excess, preventing a population from increasing. Any single factor, such as predation that keeps a population from increasing.
- 9. Using the sun as a heat energy source.
- 10. The sum of all chemical processes in living things.
- 11. A consumer that feeds on dead plants and animals.
- 12. The chemical production of sugar from water and carbon dioxide in the presence of chlorophyll and sunlight.
- 14. A green plant that converts solar energy and other plant nutrients to starches and sugars.
- 15. The ability to do work or cause changes to occur.
- 16. The science concerned with the relations between heat and energy or work and the conversion of one into the other.
- 19. An animal that feeds only on secondary consumers.
- 20. An organism that obtains organic food molecules by eating other organisms or their byproducts.
- 22. A heterotroph that obtains energy from organic molecules made by other organisms.
- 24. A group of organisms that depend on each other for food in a given ecosystem. A food web typically consists of a series of interconnected food chains.
- 25. The number of individual organisms living within a defined area.
- 27. capacity – The number of wildlife an area can support with food, shelter, and water; or the ability of a given area to provide food, water, and shelter for the population of a given animal.
- 28. A carnivorous animal that obtains its nutrition by eating primary consumers.
- 29. An animal (or plant) that eats animals.
Down
- 1. An uncultivated, uninhabited area.
- 3. A unit of energy equal to 1000 calories; the amount of heat needed to raise the temperature of 1kg of water by one degree Celsius.
- 4. A sequence of plants and animals that feed on each other
- 5. An animal that eats plants.
- 7. In ecology, the total weight of living organisms in a given area at a given time.
- 8. An animal that eats both plants and other animals.
- 13. An animal or other organism that eats plants.
- 17. A carnivore at the topmost level in a food chain that feeds on other carnivores.
- 18. An organism that breaks down other organisms into their organic compounds, such as fungi and bacteria.
- 21. The place or site where an animal lives.
- 23. A feeding level in an ecosystem.
- 26. An organism that uses energy to synthesize organic molecules from inorganic substances.