Which geologic period lasted for almost 7/8 of earth’s history?
a.
the precambrian time
b.
the quaternary period
c.
the carboniferous period
d.
the phanerozoic eon

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

Amoeba sisters video recap pedigrees