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Chapter 22 Introductionmorris2e_ch22_1.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_1_dlap.xml5602fd30757a2ecd58000000
22.1 The Biological Species Concept morris2e_ch22_2.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_2_dlap.xml5602fd30757a2ecd58000000
Species are reproductively isolated from other species. morris2e_ch22_3.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_3_dlap.xml5602fd30757a2ecd58000000
The BSC is more useful in theory than in practice. morris2e_ch22_4.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_4_dlap.xml5602fd30757a2ecd58000000
The BSC does not apply to asexual or extinct organisms. morris2e_ch22_5.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_5_dlap.xml5602fd30757a2ecd58000000
Ring species and hybridization complicate the BSC. morris2e_ch22_6.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_6_dlap.xml5602fd30757a2ecd58000000
Ecology and evolution can extend the BSC. morris2e_ch22_7.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_7_dlap.xml5602fd30757a2ecd58000000
22.2 Reproductive Isolation morris2e_ch22_8.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_8_dlap.xml5602fd30757a2ecd58000000
Pre-zygotic isolating factors occur before egg fertilization. morris2e_ch22_9.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_9_dlap.xml5602fd30757a2ecd58000000
Post-zygotic isolating factors occur after egg fertilization. morris2e_ch22_10.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_10_dlap.xml5602fd30757a2ecd58000000
22.3 Speciation morris2e_ch22_11.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_11_dlap.xml5602fd30757a2ecd58000000
Speciation is a by-product of the genetic divergence of separated populations. morris2e_ch22_12.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_12_dlap.xml5602fd30757a2ecd58000000
Allopatric speciation is speciation that results from the geographical separation of populations. morris2e_ch22_13.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_13_dlap.xml5602fd30757a2ecd58000000
Dispersal and vicariance can isolate populations from each other. morris2e_ch22_14.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_14_dlap.xml5602fd30757a2ecd58000000
Co-speciation is speciation that occurs in response to speciation in another species. morris2e_ch22_15.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_15_dlap.xml5602fd30757a2ecd58000000
Case 4: How did malaria come to infect humans? morris2e_ch22_16.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_16_dlap.xml5602fd30757a2ecd58000000
Sympatric populations—those not geographically separated—may undergo speciation. morris2e_ch22_17.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_17_dlap.xml5602fd30757a2ecd58000000
Speciation can occur instantaneously. morris2e_ch22_18.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_18_dlap.xml5602fd30757a2ecd58000000
22.4 Speciation and Selection morris2e_ch22_19.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_19_dlap.xml5602fd30757a2ecd58000000
Speciation can occur with or without natural selection. morris2e_ch22_20.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_20_dlap.xml5602fd30757a2ecd58000000
Natural selection can enhance reproductive isolation. morris2e_ch22_21.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_21_dlap.xml5602fd30757a2ecd58000000
Chapter 22 Summarymorris2e_ch22_22.html5602fd30757a2ecd58000000
DLAP questionsmorris2e_ch22_22_dlap.xml5602fd30757a2ecd58000000