Chapter 7. Patterns of Subsistence. What Is Adaptation?. Adaptation : Any change in the structure or functioning of an organism that makes it better suited to its environment. This process leads to changes in the organisms and impacts their environment.
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Patterns of Subsistence
Physical = Structural
Behavioral = Cultural
Coral snake Red milk snake
Bergmann’s Rule: Within a species the body mass increases with latitude and colder climate (i.e., larger sub-species are found at higher altitudes or colder climates.
Allen’s Rule: In warm blooded species, the relative size of exposed portions of the body decreases with decreases of mean temperature.
Gloger’s Rule: within a species more heavily pigmented forms tend to be found in more humid environments (e.g., near the equator & most studied in birds). Caveats: Tibetans (high UV radiation); Inuits (diet high in vitamin D).
Skara Brae Scotland. Mudbricks..
The Fertile Crescent.
(A) magnesium (B) matches (C) Charcoal (D) a lighter
(A) True (B) False
(A) Religious (B) Kills (C) Health care (D) Status