Chapter 5 Part 2 Flashcards Preview

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Flashcards in Chapter 5 Part 2 Deck (20)
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1

For fossilization to occur, bones should meet the following taphonomic requirements?

The bones must remain in an anoxic environment

2

You most likely experience early development in utero as a fetus and were nourished by your mothers placenta. You also have the capacity to maintain a constant internal body temperature due to metabolic activity. This means that ....?

We are endothermic

Placental mammal

3

What about humans is mite specialized rather than generalized?

Our feet

4

Speciation can occur as a result of all of the following except

Lack of differences in habitats

5

Assigning fossil remains to a particular primate species ?

Requires making comparisons to well-known living species of primates

6

Taxonomic classification?

Reflects evolutionary relationships

7

Long term continental drift had significant evolutionary ramifications because ?

Groups of animals were isolated from each other by oceans

8

The diversification of the mammals occurred mostly during the ?

Cenozoic

9

Adaptive radiation

The rapid expansion and diversification of groups of organisms into newly available ecological niches

10

Ancestral (primitive )

Structural similarities shared by a wide array of distantly related species that are inherited from a remote ancestor

such as the number of bones in the forelimb

11

How to reconstruct ancient environments

Using models derived from the study of living animals

Look at bones of extinct animals and determine how they functioned during life and in what kinds of habitats they functioned

Studying the impacts of temperature on biology and geologic chemistry

Foraminifera- ocean dwelling

Chemistry of ancient souls

12

Biostratigraphy

Draws on the first appearance of an organism in the fossil record, that organisms evolutionary development over time, and the organisms extinction

13

Radio carbon dating

The method in which the ratio of 14C to 12C is measured to provide and absolute date for a material younger than 75,000 years

14

Fossilization

Preservation of structures built by organisms, skeletal structures, petrification, preservation of organic carbon, trapping of organisms, and burial of oxygen poor environments

15

When the hominin lineage diverge from the chimp lineage

6 million years ago

8-6

16

Raymond Dart

Taung child?

Dart discovered a preserved child’s skull which was indeed a member of the hominin family tree

Australopithecus africanus

Made people acknowledge Africa’s central place in human evolution and as the place of origin of hominins

17

Piltdown man

A hoax in which bone fragments were presented as the fossilized remains of the missing link between apes and humans

18

Kraprina, Croatia

where the Neanderthal record begins in Eastern Europe

130,000-30,000 ya

19

Shanidar

Well preserved skeletons of Neanderthals in southwestern Asia

Individual with injuries who still lived to old age

70-60, 000 ya

20

La chapelle aux Saint site

Neanderthal site

Fetal burials