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Science H/W

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
1. Ecology   the study of how living things interact with each other and their environment  
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2. Ecologist   a scientist who studies ecology  
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4. Biotic Factor   the living part of an ecosystem  
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5. Abiotic Factor   the nonliving parts of an ecosystem  
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6. Populations   all the members of one species in a particular area  
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7. Communities   all the different populations that live together in an area  
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8. Population Density   the number of individuals in a specific area  
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9. Immigration   moving into a population  
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10. Emigration   leaving a population  
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11. Limiting Factors   an environmental factor that prevents a population from increasing  
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12. Carrying Capacity   the largest population that an environment can support  
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13. Niche   an organism’s particular role, or how it makes its living. A niche includes the activities and behaviors that help it satisfy the need for food, water, living space, and reproduction  
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14. Competition   the struggle between organisms to survive in a habitat with limited resources  
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15. Predation   an interaction in which one organism hunts and kills another for food  
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16. Predator   an animal that hunts and kills other animals for food  
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17. Prey   an animal that a predator feeds upon  
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18. Symbiosis   a close relationship between two species that benefits at least one species  
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19. Mutualism   a relationship in which both species benefit  
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20. Commensalism   A relationship in which one species benefits and the other species is neither helped nor harmed  
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21. Parasitism   It involves one organism living on or inside another organism and harming it. A parasite lives on or in a host  
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22. Producer   an organism that can make its own food  
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23. Consumer   an organism that obtains energy by feeding on other organisms  
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24. Herbivore   an animal that eats only plants  
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24. Herbivore   an animal that eats only other animals  
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26. Omnivore   an animal that eats both plants and other animals  
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27. Scavenger   an animal that feeds on the remains of decaying organisms  
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28. Decomposer   an organism that obtains energy by feeding on other organisms  
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29. Food Chain   a series of events in which one organism eats another and obtains energy. It shows one way energy flows through an ecosystem  
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30. Food Web   the pattern of overlapping food chains in an ecosystem. It shows various ways energy can move through an ecosystem  
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31. Energy Pyramid   a diagram that shows the amount of energy that moves from one feeding level to another in a food chain  
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32. Water Cycle   - the processes of evaporation, condensation, and precipitation that recycles our water supply  
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33. Evaporation   the process by which molecules of a liquid absorb energy and change to the gas state  
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34. Condensation   a gas changes to a liquid  
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35. Precipitation   rain, snow, sleet or hail that falls from the sky  
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36. Transpiration   evaporation of water from the leaves of a plant  
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37. Carbon and Oxygen   The producers use the carbon from the carbon dioxide they take in to produce other carbon containing molecules. They give off oxygen which the consumers take in  
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38. Nitrogen Cycle   nitrogen moves from the air to the soil, into living things, and back into the air  
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39. Nitrogen Fixation   the process of changing free nitrogen gas into a usable form of nitrogen  
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