'Adaptive radiations ' presentation slideshows

Internal controls of biogeographic patterns

Internal controls of biogeographic patterns. Objectives Explain how phenotypic diversity can enhance potential species diversity Compare and contrast allopatric, sympatric, ecological and reverse speciation Compare and contrast convergent, divergent and parallel evolution

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Are tenrecs an adaptive radiation ?

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Tracing Phylogeny

Tracing Phylogeny. Phylogeny. Phylon = tribe, geny = genesis or origin The evolutionary history of a species or a group of related species. Phylogeny. Found in fossils and the fossil record. Fossils. Any preserved remnant or impression of a past organism. Types of Fossils.

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The Cambrian Explosion and Beyond

18. The Cambrian Explosion and Beyond. 18.1 The nature of the Fossil Record. Items we will discuss in this section How Organic Remains Fossilize Strengths and Weaknesses of the Fossil Record Life Through Time: An Overview. How Organic Remains Fossilize. Two things to keep in mind.

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The History of Life on Earth

The History of Life on Earth. History of Life. Originated 3.5-4.0 billion years ago Fossil evidence: stromatolites. Major Episodes in the History of Life. Prokaryotes-3.6 billion years ago Prokaryotes diverged into Bacteria and Archaea 2-3 billion years ago

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Chapter 25

Chapter 25. The History of Life on Earth. Overview: Lost Worlds. Past organisms were very different from those now alive. The fossil record shows macroevolutionary changes over large time scales including The emergence of terrestrial vertebrates The origin of photosynthesis

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Chapter 25

Chapter 25. The History of Life on Earth. Adaptive Radiations. Adaptive radiation is the evolution of diversely adapted species from a common ancestor upon introduction to new environmental opportunities. Worldwide Adaptive Radiations.

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Patterns Of Evolution

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25.4 Continental Drift, Mass Extinctions, & Adaptive Radiations

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