Late Paleozoic Events
The Paleozoic Era can be divided into:
Early Paleozoic = Cambrian, Ordovician and Silurian
Late Paleozoic = Devonian, Carboniferous (Mississippian & Pennsylvanian), and Permian
Transition Precambrian to the Phanerozoic
The Phanerozoic Eon
Phanerozoic = "visible life".
542 million years ago to the present
Consists of three eras (from oldest to youngest):
o Paleozoic = "ancient life" (542-251 m.y. ago)
o Mesozoic = "middle life" (
Ecosystems and Global Ecology
The Global Ecosystem:
Energy Flow (58-2)
Material Cycling (58-3)
What services do ecosystems provide? (58-4)
How can ecosystems be sustainably managed? (58-5)
Biotic AND abiotic components
Reconstructing and Using Phylogenies
22.1: Interpreting a phylogenetic tree
22.2: How are phylogenetic trees constructed?
22.3: How do biologists use phylogenetic trees?
22.4: How does phylogeny relate to classification?
54.4: Phylogeny and biogeography
Climate, Biomes and Ecosystems
Why do climates vary geographically?
54-2, pgs. 1142 1145
What is a biome?
54-3, pgs. 1146 1157
How is life distributed in aquatic environments?
54-5, pgs. 1163 1164
Weather: short-term atmospheric conditions
A Lot of Earths History in a Little Bit of Time
Rocks and Time
4.56 bya 570 mya
~4.04 by old
Worlds Precambrian Rocks
Divided into 3 sections
Proterozoic 2.5 bya
Archean 4.0 bya
Evidence and Mechanisms of Evolution
Evidence for Evolution Ch. 21-1 (pgs. 440 444)
Population Genetics and HWE Ch. 21-1 (pgs. 444 448)
Mechanisms of Evolutionary Change and Darwins Contributions Ch. 21-2 and 21-3 (pgs. 448 456)
Maintenance of Genetic Var
Species Interactions and Coevolution
Types of Species Interactions (56-1, pgs. 1186 1188)
How Do Antagonistic Interactions Evolve? (56-2, pgs. 1188 1194)
How Do Mutualistic Interactions Evolve? (56-3, pgs. 1194 1198)
What Are the Outcomes of Competitive I
Ecology & Populations
What is ecology?
Ch. 54 1 (pgs. 1140 1142)
How do ecologists study populations?
Ch. 55 1 (pgs. 1167 1173)
How can we model population growth?
Ch. 55 2 & 3 (pgs. 1173 1176)
Ecology: scientific study of interactions between organisms a
57 Community Ecology
What Are Ecological Communities?
57-1, pgs. 1204 1208
Ecological community: all species that coexist in an area
Boundaries not always well-defined
Energy in Communities
Ultimate source: sunlight (usually)