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[UCSB] EEMB 2 - Midterm 1 Questions and Answers

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[UCSB] EEMB 2 - Midterm 1 Questions and Answers What is ecology? - ANSWER-The distribution and abundance of organisms and WHY (what factors, interactions, etc.) What book did Aristotle write that contributed to ecology? What did he contribute? - ANSWER- Historia Animalium; he was able to expla...

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  • October 31, 2024
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[UCSB] EEMB 2 - Midterm 1 Questions and

Answers


What is ecology? - ANSWER✔✔-The distribution and abundance of organisms and WHY (what factors,

interactions, etc.)


What book did Aristotle write that contributed to ecology? What did he contribute? - ANSWER✔✔-

Historia Animalium; he was able to explain 'divine' events with natural processes


What book triggered the environmental movement of the 60's, and the first time ecology was seen as

rigorous and serious? - ANSWER✔✔-Silent Spring by Rachel Carson


Any environment is made up of its ________________ and ________________ components. -

ANSWER✔✔-Biotic and abiotic


What are abiotic components? Give examples. - ANSWER✔✔-Nonliving components of an environment,

e.g. temperature, soil composition, etc.


What are biotic components? Give examples. - ANSWER✔✔-Living components of an environment, e.g.

competition, predation, etc.


We learn less and less as we move (lower/higher) on the biological scales. - ANSWER✔✔-Higher

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What is a population? - ANSWER✔✔-Two or more individuals of the same species in a defined

geographical location


What is a community? - ANSWER✔✔-Two or more populations of two or more different species living in

a defined geographical location


What is an ecosystem? - ANSWER✔✔-A collection of communities and their physical environment


What 3 'spheres' make up the biosphere? - ANSWER✔✔-Lithosphere, hydrosphere, and atmosphere


We gain _________ but lose ___________ when making experiments to study ecology (rather than

studying ecology out as it is naturally) - ANSWER✔✔-We gain accuracy but lose authenticity


What is the purpose of ecology? - ANSWER✔✔-To predict, manage, and control the environment


How do we use statistics to estimate the size of a population? - ANSWER✔✔-By taking a random sample

to act as a small representative subset and basing our estimate off of that


P-value - ANSWER✔✔-The probability value; how much 'confidence' we have in our conclusions (if less

than 5%, generally acceptable)


What do we use frequency distribution for? - ANSWER✔✔-To find probability


Is biological data generally distributed in a 'normal' curve? - ANSWER✔✔-Yes




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What does the Z-test in statistics tell us? - ANSWER✔✔-How much above or below the mean something

is


What is Graunt the father of? - ANSWER✔✔-Demography (1662)


What kind of growth was Leeuwenhoek interested in? - ANSWER✔✔-Population growth (ie, insects)

(1687)


What did Malthus believe? Was he right or wrong? - ANSWER✔✔-That populations grow exponentially

but food grows linearly, this was wrong (1798)


What did Quetelet believe? - ANSWER✔✔-That growth (population, food, etc.) is somehow controlled by

the environment (logistic growth)


What did Verhulst do? - ANSWER✔✔-Came up with an equation (describes the logistic growth of

populations) to prove Quetelet's theory of logistic growth


What is Farr's rule? - ANSWER✔✔-As population density increases, so do mortality rates


What were Forbes and Cowles the first to study? - ANSWER✔✔-Community regulation and succession

(species replacement)


What did Robert Ross study? - ANSWER✔✔-Systems analysis (mathematical modeling of the spread of

infectious disease)



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