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Transcript
Name______________________________________ Block____________ Environmental Science Chapter 1 Populations and Communities Section 1 Living Things and the Environment Key Terms: organism habitat biotic factor abiotic factor population community ecosystem ecology photosynthesis species 1. ____________________ an environment that provides the things an organism needs to live, grow, and reproduce 2. ____________________ the process in which organisms use water along with sunlight and carbon dioxide to make their own food 3. ____________________ the study of how living things affect each other and the environment 4. ____________________ a living part of an organism’s habitat 5. ____________________ living thing 6. ____________________ all the members of the same species that live in an area 7. ____________________ a nonliving part of an organism’s habitat 8. ____________________ a group of organisms that look alike and can mate with one another 9. ____________________ the community of organisms in an area and the nonliving parts of the area 10. ___________________ all the different populations in an area Key Concepts: What needs are met by an organism’s environment? __________________________________________________________ __________________________________________________________ __________________________________________________________ What are the two parts of an organism’s habitat with which it interacts? __________________________________________________________ __________________________________________________________ __________________________________________________________ What are the levels of organization within an ecosystem? ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ Name______________________________________ Block____________ Environmental Science Chapter 1 Populations and Communities Section 2 Studying Populations Key Terms: estimate birth rate death rate limiting factor carrying capacity immigration emigration population density 1. ____________________ an approximation of a number, based on reasonable assumptions 2. ____________________ an environmental factor that causes a population to decrease 3. ____________________ the largest population that an area can support 4. ____________________ number of deaths in a population in a certain amount of time 5. ____________________ leaving a population 6. ____________________ number of births in a population in a certain amount of time 7. ____________________ moving into a population 8. ____________________ the number of individuals in an area of a specific size Key Concepts: How do ecologists determine the size of a population? ____________________________________________________ ____________________________________________________ ____________________________________________________ What causes populations to change in size? ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ What factors limit population growth? ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ Name______________________________________ Block____________ Environmental Science Chapter 1 Populations and Communities Section 3 Interactions Among Living Things Key Terms: natural selection adaptations niche competition predation predator symbiosis mutualism commensalism parasitism parasite host prey 1. ____________________ the struggle between organisms to survive as they attempt to use the same limited resources 2. ____________________ the organism that is killed 3. ____________________ the organism in or on which the parasite lives 4. ____________________ the role of an organism in its habitat, or how it makes a living 5. ____________________ individuals whose unique characteristics are best suited for their environment tend to survive and produce offspring 6. ____________________ a relationship in which one species benefits and the other is neither helped nor harmed 7. ____________________ close relationship between two species that benefits at least one of the species 8. ____________________ the organism that does the killing 9. ____________________ an interaction in which one organism kills another for food 10.____________________ one organism lives on or inside another organism and is harming it 11. ___________________ a relationship in which both species benefit 12. ___________________ the organism that benefits from parasitism 13. ___________________ the behaviors and physical characteristics that allow organisms to live successfully in their environments Key Concepts: How do an organism’s adaptations help it to survive? ____________________________________________________ ____________________________________________________ ____________________________________________________ What are the major ways in which organisms in an ecosystem interact? ____________________________________________________ ____________________________________________________ ____________________________________________________ What are the three types of symbiotic relationships? ____________________________________________________ ____________________________________________________ Name______________________________________ Block____________ Environmental Science Chapter 1 Populations and Communities Section 4 Changes in Communities Key Terms: succession primary succession pioneer species secondary succession 1. ____________________ the first species to populate an area 2. ____________________ the series of predictable changes that occur in a community over time 3. ____________________ the series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist 4. ____________________ the series of changes that occur in an area where no soil or organisms exist Key Concepts: How do primary and secondary succession differ? ____________________________________________________ ____________________________________________________ ____________________________________________________ Test Preparation: Chapter 1 Study Guide p. 36-38 Go online for Self-Assessment: PHSchool.com (Web Code: cea-5010) Study this study guide Extra Credit Opportunities (PHSchool.com) Changes in Population Activity (Web Code: cep-5012) More on Population Interactions (Web Code: ced-5013) *Print out the above activities when completed Links on Succession (Web Code: scn-0514) *Print out one of the articles and write a 5 sentence summary on the article (worth 5 points)
