quizzez
constraint
1. A limit to a design process. Constraints may be such things as appearance, funding, space, materials, and human capabilities. 2. A limitation or restriction.
fossil record
Chronological collection of life's remains in sedimentary rock layers
Periods
Horizontal rows on the periodic table
Fossil
The preserved remains or traces of an organism that lived in the past
era
a long and distinct period of history with a particular feature or characteristic.
citeria
a principle or standard by which something may be judged or decided
Ice Age
any period of time during which glaciers covered a large part of the earth's surface
complex
consisting of many different and connected parts
mass extinction
event in which many types of living things become extinct at the same time
extinct
no longer existing
geologic time scale
scale used by paleontologists to represent evolutionary time
presevered remains
something that is gone when it dies
Orgins
the point or place where something begins, arises, or is derived.
Biodiversity
the variety of life in the world or in a particular habitat or ecosystem.