5 Written Questions

1. an organism's particular role in an ecosystem, or how it makes its living
2. a close relationship between species that benefits at least one of the species
3. the organism that a parasite lives in or on in parasitism
4. a relationship in which one organism lives on or inside another and harms it
5. moving into a population

5 Matching Questions

1. adaptation
2. population
3. ecosystem
4. commensalism
5. population density

1. a the number of individuals in a specific area
2. b the behaviors and physical characteristics of species that allow them to live successfully in their environment
3. c all the members of one species in a particular area
4. d a relationship between one species benefit and the other is neither helped nor harmed
5. e all the living and nonliving things that interact in an area

5 Multiple Choice Questions

1. leaving a population
   1. emigration
   2. adaptation
   3. immigration
   4. population
2. the organism that does the killing in predation
   1. predator
   2. parasite
   3. prey
   4. predation
3. the study of how living things interact with each other and their environment
   1. ecosystem
   2. host
   3. prey
   4. ecology
4. an approximation of a number based on reasonable assumptions
   1. birth rate
   2. estimate
   3. death rate
   4. habitat
5. an organism that is killed in predation
   1. species
   2. predator
   3. prey
   4. host

5 True/False Questions

1. competition → the behaviors and physical characteristics of species that allow them to live successfully in their environment

   True        False

2. mutualism → a relationship between one species benefit and the other is neither helped nor harmed

   True        False

3. abiotic factor → a nonliving part of an ecosytem

   True        False

4. habitat → the place where an organism lives and that provides the things it needs

   True        False

5. death rate → the number of births in a population in a certain area in a certain amount of time

   True        False