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Homologous Structures

Week 28-Life Science

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What are vestigial structures?

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Homologous Structures

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Homologous Structures:

Similar form, different function

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Analogous Structures:

Similar function, different form

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In your notebook, list 2-3 examples of each type of structure

Vestigial

Homologous

Analogous

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Anatomy of an egg/embryo

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Fish Dissection

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Oncorhynchus mykiss

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“Rainbow Trout”

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External Anatomy

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Fins

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A brief intro to

Geologic Time

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Like days, months, years…but MUCH bigger.

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Periods, Eras, and Eons

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We “define” them by when major events happen.

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The Anthropocene: Another extinction?

https://media.hhmi.org/biointeractive/click/anthropocene/