Flashcards in Chapter 5 Part 2 Deck (20)
For fossilization to occur, bones should meet the following taphonomic requirements?
The bones must remain in an anoxic environment
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
What about humans is mite specialized rather than generalized?
Speciation can occur as a result of all of the following except
Lack of differences in habitats
Assigning fossil remains to a particular primate species ?
Requires making comparisons to well-known living species of primates
Reflects evolutionary relationships
Long term continental drift had significant evolutionary ramifications because ?
Groups of animals were isolated from each other by oceans
The diversification of the mammals occurred mostly during the ?
The rapid expansion and diversification of groups of organisms into newly available ecological niches
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
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
Draws on the first appearance of an organism in the fossil record, that organisms evolutionary development over time, and the organisms extinction
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
Preservation of structures built by organisms, skeletal structures, petrification, preservation of organic carbon, trapping of organisms, and burial of oxygen poor environments
When the hominin lineage diverge from the chimp lineage
6 million years ago
Dart discovered a preserved child’s skull which was indeed a member of the hominin family tree
Made people acknowledge Africa’s central place in human evolution and as the place of origin of hominins
A hoax in which bone fragments were presented as the fossilized remains of the missing link between apes and humans
where the Neanderthal record begins in Eastern Europe
Well preserved skeletons of Neanderthals in southwestern Asia
Individual with injuries who still lived to old age
70-60, 000 ya