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2a. "I Love Lucy"
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Lucy belonged to genus Australopithecus and the species afarensis, but she also belonged to the the hominid family (hominidae) to which humans belong. Although humans are of the family hominidae, we are not of Lucy's genus or species. We are Homo sapiens. How then, can Lucy be our ancient ancestor if we belong to a different genus and species? It's because humans and Lucy share a taxonomy up to the point of genus and species; there are many shared characteristics, but there are differences and these differences place humans in our own genus and species.

Subject:
Ancient History
Archaeology
Material Type:
Diagram/Illustration
Reading
Provider:
Independence Hall Association
Provider Set:
Ancient Civilizations
Date Added:
02/15/2018
Carbon 14 Dating
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The task requires the student to use logarithms to solve an exponential equation in the realistic context of carbon dating, important in archaeology and geology, among other places. Students should be guided to recognize the use of the natural logarithm when the exponential function has the given base of e, as in this problem. Note that the purpose of this task is algebraic in nature -- closely related tasks exist which approach similar problems from numerical or graphical stances.

Subject:
Mathematics
Functions
Archaeology
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
05/01/2012