Download Types of Selection NATURAL SELECTION a) stabilizing: b

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Types of Selection
NATURAL SELECTION
a) stabilizing:
b) directional selection:
c) disruptive selection:
SEXUAL SELECTION
CHEMICAL SELECTION
ARTIFICIAL SELECTION
Worksheet/text book sheet
Speciation
Defined as…
How do we define a species?
The Formation of a new species is called MACROEVOLUTION
Reproductive Isolating Mechanisms:
I) Pre-zygotic (pre-fertilization barriers)
a) Behavioural Isolating Mechanisms-
b) Habitat Isolating Mechanisms-
c) Temporal Isolating Mechanisms-
d) Mechanical Isolating Mechanisms-
e) Gametic Isolating mechanisms-
II) Post-zygotic isolating Mechanisms (post-fertilization barriers)
a) Hybrid Inviablity-
b) Hybrid Sterility-
c) Hybrid Breakdown-
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