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Bio 105 UPDATED ACTUAL Exam Questions and CORRECT Answers
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Bio 105 UPDATED ACTUAL Exam Questions and CORRECT Answers gradual and continuous change in species composition of community following a disturbance - CORRECT ANSWER- Succession newly exposed or newly formed site is colonized by living things for the first time Ex. New island or glacier - COR...

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  • October 22, 2024
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  • 2024/2025
  • Exam (elaborations)
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Bio 105 UPDATED ACTUAL Exam
Questions and CORRECT Answers
gradual and continuous change in species composition of community following a disturbance
- CORRECT ANSWER✔✔- Succession


newly exposed or newly formed site is colonized by living things for the first time


Ex. New island or glacier - CORRECT ANSWER✔✔- Primary Succession


area previously occupied by living things is disterbed and then recolonized


Ex. Hurricane or tornato - CORRECT ANSWER✔✔- Secondary Succession



early successional species that grow fast and are shad intolerant - CORRECT ANSWER✔✔-
pioneer species


late successional species that grow slow and are strong competitors - CORRECT
ANSWER✔✔- primary species


final stage of succession that remains constant/stable until disrupted by disturbance -
CORRECT ANSWER✔✔- climax community


early colonizing species modify environment and enhance establishment - CORRECT
ANSWER✔✔- facilitation


early colonizing species modify environment in a way that inhibits later arriving species -
CORRECT ANSWER✔✔- inhibition


earl colonizing species modify environment but have no effect on later arriving species -
CORRECT ANSWER✔✔- tolerance

, the total mass of organisms in a given area or volume - CORRECT ANSWER✔✔- biomass



number of different species in a community - CORRECT ANSWER✔✔- species richness


higher richness because time has allowed for different species to become apart of the
community - CORRECT ANSWER✔✔- species-time hypothesis


large area contains more species because they have larfer surface area for organisms -
CORRECT ANSWER✔✔- species area hypothesis


observation that the number of species tent to increase the amount of available area -
CORRECT ANSWER✔✔- species area effect



greater production of plants results in overall species richness - CORRECT ANSWER✔✔-
species-productivity hypothosis


number of species in community


Ex. one species focused - CORRECT ANSWER✔✔- relative abundance


measurement of diversity of a community that incorporates both number of species in an area
and relative abundance of individuals - CORRECT ANSWER✔✔- species diversity



mean of measurement of diversity of community - CORRECT ANSWER✔✔- Shannon
Diversity Index


species rich communities are more stable that those with low species richenss - CORRECT
ANSWER✔✔- diversity-stability hypothesis


explaining succession on island theory that number of species on island are a result of
balance of immigration and extinction - CORRECT ANSWER✔✔- equilibrium model of
island biography

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