Mammal and reptile fossils can be differentiated based on ____
a. pelvis shape
b. stomach contents
c. habitat, as determined from rock type
d. outer covering
e. ear bone and jaw structure
e
You might also like to view...
The ____________________ are tooth-like calcium phosphatic fossils that are excellent index fossils for the
Ordovician. Fill in the blank(s) with the appropriate word(s).
In general, problems caused by economic activities are
A) characteristic of small populations. B) usually temporary. C) addressed by laws and public policies. D) not environmental problems.
The ________ Rift is the rift below the New Madrid region and is responsible for the seismic activity in the area.
A. Rio Grande B. East African C. Sonoran D. Reelfoot
An interaction between substances which exacerbates their effects is known as
A. synergism. B. sympatric interconnectivity. C. complex amalgamation. D. None of these choices are correct