Midterm 1 Flashcards
The signs of the Oligocene Epoch were…?
glacial cooling and pack ice in Antartica
The first signs of the oligocene epoch occurred around what time?
35 MYA
Since 800,000 YAG there have been intense cycles every ____ years.
90,000
When did ice sheets start to cover the northern continents?
3.2 mya
Occilations in ice occur how many years apart?
20,000-40,000 years apart
How many major glacial periods have there been?
9
In order to be classified in the kingdom Animalia you must have/do…?
Ingest nutrients, Move about, Nervous system, Move about
An animal that has a spinal chord is classified as a…?
Phyla-chordata
An animal that has a spinal chord encased in bone is called a…?
sub-phylum- vertebrata
Mammalia must have what?
constant body temp, hair, live births, mammary glands, large complex brains
What makes us human (5 sections)?
Vision and senses, locomotion, reproduction, intelligence, social systems
What is unique about our vision?
Forward facing eyes-color, stereoscopic= depth perception, bony eye sockets
What is unique about our locomotion?
2 legs, skeletal structure, flexible limbs and brachiation (we swing our legs), prehensile (grasping) hands and feet, opposable thumb (we are the most accurate), flat finger nail
What is unique about our reproduction?
Live usually single births, direct care of young, longest period post natal dependency (21 in America but this is culturally determined)
What is unique about our intelligence?
Language, planning, abstract thought- neo cortex area (complex thought), large complex brains