Across
- 1. it is made of material that comes from living organisms, such as plants and animals.
- 4. decrease in forest areas across the world that are lost for other uses such as agricultural croplands, urbanization, or mining activities
- 7. organisms that are able to make their own food through photosynthesis or chemosynthesis
- 8. total amount of water on a planet
- 10. non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
- 11. organisms that eats other plants or animals for energy and nutrients
- 13. an organism that regularly consumes a variety of material, including plants, animals, algae, and fungi
- 16. a fuel (such as coal, oil, or natural gas) formed in the earth from plant or animal remains.
- 18. a group or association of populations of two or more different species occupying the same geographical area at the same time,
- 21. organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
- 22. organisms that are unable to make their own energy, and instead rely on the consumption and digestion of producers or other consumers, or both, to survive.
- 23. The heat-producing reaction of a material with oxygen gas or other oxidant, often producing a flame
- 25. an organism that mostly eats meat, or the flesh of animals
- 26. organisms that feeds on nonliving organic matter known as detritus at a microscopic level.
- 28. organism that breaks down dead organic material; also sometimes referred to as detritivores.
- 30. a living component of an ecosystem
Down
- 2. layer of gases surrounding the earth
- 3. The part of the Earth system comprising all ecosystems and living organisms, in the atmosphere, on land (terrestrial biosphere) or in the oceans (marine biosphere), including derived dead organic matter, such as litter, soil organic matter and oceanic detritus.
- 5. chain the sequence of transfers of matter and energy in the form of food from organism to organism
- 6. a set of organisms adapted to a particular set of resources, called a niche, in the environment.
- 9. the sum total of living, non-living components; influences and events, surrounding an organism
- 12. A group of individuals that belong in the same species and live in the same area
- 14. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
- 15. the substance of the land surface; soil.
- 17. a graphical representation designed to show the biomass or bio productivity at each trophic level in a given ecosystem.
- 19. a living structure that is able to perform Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition
- 20. web the relationships — links or connections — among species in an ecosystem
- 24. an organism that mostly feeds on plants.
- 27. levels The trophic level of an organism is the position it occupies in a food web
- 29. community of living organisms in conjunction with the nonliving components of their environment, interacting as a system