Across
- 2. a substance that takes part in a biochemical reaction or a biological process.
- 4. the relationship between different species in which one organism lives on or in the other organism and benefits from it by causing some harm.”
- 6. an organism that mostly feeds on plants
- 9. study of the loss of Earth's biological diversity and the ways this loss can be prevented.
- 11. the doctrine that mutual dependence is necessary to social well-being
- 13. all of the food chains in an ecosystem.
- 14. the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc.
- 16. a biological community of interacting organisms and their physical environment.
- 19. an animal or person that eats food of both plant and animal origin.
- 20. a group of individuals of the same species living and interbreeding within a given area.
- 21. Living things that are capable of reacting to stimuli, reproduction, growth, and homeostasis.
- 23. an organism that creates its own food or energy.
- 26. nonnative organism (disease, parasite, plant, or animal) that begins to spread or expand its range from the site of its original introduction and that has the potential to cause harm to the environment, the economy, or to human health.
- 28. the process by which the mix of species and habitat in an area changes over time
- 30. a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
- 31. an animal that feeds on carrion, dead plant material, or refuse.
- 35. physical rather than biological; not derived from living organisms.
- 38. an association between two organisms in which one benefits and the other derives neither benefit nor harm.
- 39. study of the pattern and interaction between ecosystems within a region of interest
- 40. the match of a species to a specific environmental condition
Down
- 1. the natural home or environment of a plant, animal, or other organism.
- 3. an organism that cannot produce its own food and must eat other plants and/or animals to get energy.
- 5. the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis
- 7. A biome is a distinct geographical region with specific climate, vegetation, and animal life
- 8. an animal which feeds on dead organic material, especially plant detritus.
- 9. the long-term, predictable atmospheric conditions of a specific area
- 10. an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
- 12. a deep or seemingly bottomless chasm.
- 15. the lowest ecological zone in a water body
- 17. an insectivorous animal or plant
- 18. the mass of living biological organisms in a given area or ecosystem at a given time.
- 22. the close external resemblance of an animal or plant (or part of one) to another animal, plant, or inanimate object.
- 24. The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available.
- 25. a global ecosystem made up of living organisms (biota) and the nonliving (abiotic) factors that provide them with energy and nutrients
- 27. a model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem.
- 29. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
- 32. an interacting group of various species in a common location
- 33. an animal that feeds on flesh
- 34. an environmental factor or variable that has the capacity to restrict the growth, abundance, or distribution of a population in an ecosystem
- 36. relating to or resulting from living things, especially in their ecological relations.
- 37. hide or disguise the presence of (a person, animal, or object) by means of camouflage.