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BIO 100 Test 3 UPDATED Exam Questions and CORRECT Answers

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BIO 100 Test 3 UPDATED Exam Questions and CORRECT Answers Ecology - CORRECT ANSWER - the study of relationships among organisms and between organisms and their environment Ex:molecules in your body came out of the ground through a volcano Population - CORRECT ANSWER - A group of individuals from the same

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Institution
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Uploaded on
June 11, 2025
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BIO 100 Test 3 UPDATED Exam Questions
and CORRECT Answers
Ecology - CORRECT ANSWER - the study of relationships among organisms
and between organisms and their environment


Ex:molecules in your body came out of the ground through a volcano


Population - CORRECT ANSWER - A group of individuals from the same
species.
-share the same habitat
-share the same resources
- potentially interbreed
Ex: Population of the BYU Campus


Demography - CORRECT ANSWER - the measurement and statistical
study of characteristics of populations


Ex: How many births in one year


Characteristics of Populations - CORRECT ANSWER - -Size
-Density
-Dispersion
- Age structure
-Sex ratio
-Natality and Mortality


Size - CORRECT ANSWER - total number of individuals

, Constant population size: b + i = d + e
b = births
i = immigration
d = deaths
e = emigration


Density - CORRECT ANSWER - the number of things in a certain area


Ex: Number of people living in the Helaman Halls Chipman building


relative vs. absolute


Dispurtion - CORRECT ANSWER - how the individuals are spaced
-Random
-Uniform
-Clumped


Age Structure - CORRECT ANSWER - the relative number of individuals in each cohort



Natality - CORRECT ANSWER - birth rate



TRV - CORRECT ANSWER - Each individual has a total reproductive value


TRV = CRV + RRV where CRV is current
reproductive value and RRV is residual
reproductive value
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