en SC Interactions in Ecosystems 26 habitat: biotic and abiotic factors in the area where an organism lives ecological niche: physical, chemical, and biological factors that a species needs to survive stay healthy and reproduce competitive exclusion: one species better suited to the niche than the other ecological equivalent: species that occupy similar niches but live in different regions competition: fighting for the same limited resources predation: the process by which one organism captures and feeds on another organism symbiosis: a close relationship between two or more organisms of different species that live in close proximity mutualism: interspecies interaction in which both species interact commensalism: relationship between two organisms in which one benefits and one does not parasitism: relationship between two organism in which one benefits and one is harmed population density: measurement of the number of individuals living in a defined space population dispersion: the way in which individuals of a population are spread in an area or volume survivorship curve: diagram showing the number of surviving members over time from a measured set of births immigration: movement of individuals into a population from another population emigration: movement of individuals out of a population and into another population exponential growth: when a population increases over a period of time logistic growth: population begins with slow growth followed by exponential growth then stabilizing carrying capacity:the maximum number of individuals that an environment can support population crash: dramatic decline in the size of a population over a short period of time limiting factor: the factor that has the greatest effect in keeping down the size of the population density dependent: limiting factors that are affected by the number of individuals in a given area density independent: the aspects of the environment that limit a population's growth regardless of the density of the population. succession: sequence of biotic changes that create a community in a previously uninhabited area primary succession: establishment of an ecosystem in a previously uninhabited area pioneer species: first organisms that live in a previously uninhabited area secondary succession: reestablishment of a damaged ecosystem in an area where the soil is left intact

Interactions in Ecosystems

1. IALCONEOCIHCLEG

physical, chemical, and biological factors that a species needs to survive stay healthy and reproduce

2. RPASSAIMTI

relationship between two organism in which one benefits and one is harmed

3. TIMEPCIOOTN

fighting for the same limited resources

4. IYCRCICAYTPGNARA

the maximum number of individuals that an environment can support

5. MBSIOISSY

a close relationship between two or more organisms of different species that live in close proximity

6. NSCSMLOIAEMM

relationship between two organisms in which one benefits and one does not

7. ACNTOIUARPHSPLO

dramatic decline in the size of a population over a short period of time

8. NTGTIIARIFMCLO

the factor that has the greatest effect in keeping down the size of the population

9. EEIRECSNPEOSPI

first organisms that live in a previously uninhabited area

10. CCSEUOISSN

sequence of biotic changes that create a community in a previously uninhabited area

11. NDOERIPTA

the process by which one organism captures and feeds on another organism

12. SEOENUCSSANRICOSCYD

reestablishment of a damaged ecosystem in an area where the soil is left intact

13. IATTHBA

biotic and abiotic factors in the area where an organism lives

14. IYSRSUSOPMENCIRCA

establishment of an ecosystem in a previously uninhabited area

15. OMITRINGAMI

movement of individuals into a population from another population

16. NOGOELALELIUQAIECTCV

species that occupy similar niches but live in different regions

17. UMSULIMAT

interspecies interaction in which both species interact

18. RRSUVUPCEHRVOSIVI

diagram showing the number of surviving members over time from a measured set of births

19. OLOPAIOIDINNSERPTUPS

the way in which individuals of a population are spread in an area or volume

20. YEIESNNENPDTEDNTID

the aspects of the environment that limit a population's growth regardless of the density of the population.

21. ENEYNPEIDNTEDDST

limiting factors that are affected by the number of individuals in a given area

22. PIDNLSOOUATPTIYNE

measurement of the number of individuals living in a defined space

23. TAGOLXNIRTWEOHEPN

when a population increases over a period of time

24. OWOLGGICHTRSIT

population begins with slow growth followed by exponential growth then stabilizing

25. EPVOEXLNCEOTMIISTIUC

one species better suited to the niche than the other

26. MEGTIRNOAI

movement of individuals out of a population and into another population