5 Written questions
5 Multiple choice questions
- an era of recent life that began about 65 million years ago and continues today,includes the first appearance of Homo Sapiens about 400,000 years ago.
- longest subdivision of geologic time scale that is based on the abundance of certain types of fossils and is subdivided into eras, periods, and epochs
- Second longest division of geologic time based on major worldwide changes in types of fossils
- Large ancient land mass that was composed of all the continents
- era of ancient life, which began about 544 million years ago when organisms developed hard parts and ended with mass extinctions about 245 million years ago
5 True/False questions
Precambian time → organism with a three-lobed exoskeleton that was abundant in Paleozoic oceans and is considered to be an index fossil
Period → A group of organisms that can only reproduce with it's own kind.
Species → Third longest divison of geologic time-subdivided into epochs and is characterized by the types of life that existed worldwide
Natural selection → The process by which organisms that are suited to a particular environment are better able to survive and reproduce than organisms that are not.
Mesozoic era → an era of recent life that began about 65 million years ago and continues today,includes the first appearance of Homo Sapiens about 400,000 years ago.