3.2 Origins of biodiversity

Significant ideas:

Evolution is a gradual change in the genetic character of populations over many generations, achieved largely through the mechanism of natural selection.
Environmental change gives new challenges to species, which drives the evolution of diversity.
There have been major mass extinction events in the geological past.

Evolution

The world is incredibly, beautifully diverse. This diversity is a result of evolution by natural selection.

3.2a Evolution

3.2-Origins-of-Biodiversity.pdf

Why does this make good evolutionary sense?

Untitled spreadsheet

SPECIATIOn

Book Creator Task

Use the library at www.bookcreator.com 6QQGBSB

Tell the story of one speciation event. See the slides above for examples, like the pork fish. Add images and beauty to your story! And use the following keywords.

KEYWORDS

Natural Selection

Mutation
Survive
Reproduce
Generations

Speciation

Isolation
Geographical barrier
Gene pool
Natural selection

Extension learning

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