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Biological Anthropology Anth 2015 Study Guide Graded A
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Biological Anthropology (Anth 2015) Study Guide Graded A+ What was Pangaea? Match each of these pairs of parent-daughter isotopes used in radiometric dating to its half-life. Why is the Fayum Depression important? The history of the earth is divided into eons, eras, periods, and epochs, as show...

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  • March 11, 2024
  • 2
  • 2023/2024
  • Exam (elaborations)
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  • biological
  • anthropology
  • anth

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Biological Anthropology (Anth 2015) Study Guide
Graded A+

1). What was pangaea?

 Ans: 200- 300 mya supercontinents


2). Match each of these pairs of parent-daughter isotopes used in radiometric dating to its half-
life.

 Ans: C14- N14
- 5,730
K40- Ar39
- 1.3 billion
U235-Pb207
- 713 my


3). Why is the fayum depression important?

 Ans: -The geological record at the Fayum Depression, Egypt, includes fossils dating from
around 37 to 29 million years ago.

-Other African fossil deposits that date to the same period as the Fayum Depression are
very rare or fossil free.


4). The history of the earth is divided into eons, eras, periods, and epochs, as shown in this
diagram depicting the evolution of life. match each era to the correct portion on the ribbon.

 Ans: The Paleozoic- lasted from 545-250 mya. During this time, fish, reptiles, and insects
first appeared.

The Mesozoic- Dinosaurs emerged, thrived, and became extinct during the Mesozoic era,
which lasted from 230-66 mya.

The Cenozoic- We are currently in the Holocene epoch, in the Cenozoic era, which began
around 66 million years ago. The era is characterized by the rise and flourishing of
mammals like primates, especially humans.
Life on Earth began at least 3.5 billion years ago, just over a billion years after the earth




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