Question 7 options: Structures that no longer serve any purpose are considered to be (blank)
structures. An example would be (blank) the
in humans, once used as part of the intestines and now frequently removed leaving an abdominal scar.

the answer is: metamorphic rocks often show the presence of fossils, also a

hope i

-lavira: )

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

a metamorphic rock would be formed.