SBI 3U1
Evolution: Review Checklist
Theory of evolution:
 The three principles necessary for natural selection
 Natural selection and selective pressures
 What does evolution refer to? What is the smallest unit that can evolve?
 Allele frequencies: favourable vs. neutral vs. unfavourable effects
 Be able to discuss the Peppered Moth example as an example of evolution
 How does knowledge of genetics support the theory of evolution? Be able to
explain this with some specifics regarding the laws of inheritance.
 How do mutations play a role in natural selection?
Mechanisms that support natural selection and evidences for how it occurs :
 Sexual selection
 Kin Selection
 Biogeography (specifically: species on remote islands)
 Embryology
 Pros and cons of fossil evidence for evolution
 Biochemistry evidence for evolution
 Homologous, Analogous and Vestigial structures – what are they? Why do they
support the theory of evolution?
 Be able to describe the function of various vestigial structures (article case study)
 Be able to identify features as homologous, analogous or vestigial (like the
textbook questions)
How environmental changes and technology affect natural selection and various species:
 Artificial selection
 The result and importance of mutations on natural selection
Speciation and Mechanisms of Variation:



Polyploidy
Allopatric vs. Sympatric Speciation
How does high frequency of genetic disorders arise in isolated human
populations?








Allele frequencies: favourable vs. neutral vs. unfavourable effects
Deleterious alleles and their effect on gene pools
Impact of: genetic drift, natural selection and gene flow on allele frequencies
Macroevolution vs. Microevolution (definitions and examples of each)
Bottleneck Effect
Founder Effect
Stabilizing, Disruptive and Directional Selection (definitions and graphs)
Prezygotic vs. Postzygotic barriers
SBI 3U1







Behavioural isolation, mechanical isolation, habitat isolation, temporal isolation,
gametic isolation
Adaptive radiation
Convergent Evolution
Divergent Evolution
Coevolution
Be able to understand the parts of a phylogenetic tree (identify common ancestors,
modern species, extinction, stasis, etc.
Co-evolution/evolutionary arms race (define; example)