Which of the following terms refer to the total number of different species, including humans, on Earth or in an area? (Choose all that apply) biodiversity
species richness
species diversity
biosphere

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Which beat describes the brain stem

Which description provides the best objective summary of the article in the passage?