Unit 4 Learning Objectives.docx-Specific...
Unit_4_Learning_Objectives.docx-Specific Unit 4 Goals and Outcomes
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Unit 4 Learning Objectives.docx-Specific Unit 4 Go...
Unit_4_Learning_Objectives.docx-Specific Unit 4 Goals and Outcomes
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Unit_4_Learning_Objectives.docx-Specific Unit 4 Goals and Outcomes
Page 3
F. 
Recognize
 different isolating mechanisms when presented with examples
G. 
Define
 the concept of “divergence” with respect to two recently isolated populations
Divergence: there are differences in the population
H. With respect to allopatric isolation, 
contrast
 allopatry by dispersal with vicariance
Dispersal: something allows the population to move voluntarily to a new location
Vicariance: a change in environment changes the landscape
HOCS
I. Given information about different species, 
evaluate
 the relative chance that specific isolating
mechanisms can isolate sub-populations
J. 
Compare
 and 
contrast
 the processes that reproductively isolate populations with those that
change allele frequencies
Prezygotic and postzygotic reproductively isolate populations
Changes allele frequencies: genetic drift, mutation, natural selection, gene flow
10. Understand abiotic interactions that control the geographic distribution of organisms
 LOCS
A. Differentiate
 biotic and abiotic components of an organism’s environment
Biotic: living
Abiotic: nonliving
B. 
Relate
 the life cycle of the Anopheles to its requirements in the abiotic environment
Anopheles: vector (mosquito)
It needs clear, shallow, water for the embryos to develop and then the embryos will hatch
when it is dry
Life cycle is tied to water
C. 
Predict
 the suitability of different habitats for any organism given information on the abiotic
factors there (i.e., temperature, rainfall, etc.) and information about the organism’s physiology.
11. Understand the determinants of population size and growth
 LOCS
A. List
 the four factors that determine population size and growth rate
Immigration
Emigration
Births
Deaths
B. 
Define
 the terms b, d, r and K and relate them to change in population size (N)
r= rate of growth—is a population increasing or decreasing? Look at (births +
immigration) – (deaths + emigration)
o
If r is
positive
, birth rate is
higher
than the death rate and the population
size
increases
o
If r is
zero
, birth rate
equals
death rate and the population size
stays the same
o
If r is
negative
, birth rate is
less
than the death rate and the population
size
decreases
b = births
d = deaths
K = carrying capacity
C. 
Relate
 fitness consequences of biotic interactions to rates of population growth (b, d, r, and
K)
Biotic interactions—competition, predation, mutualism


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