Which of the following is an essential characteristic of an index fossil?
A) The organism lived in a very specific environment or two, such as tropical volcanic islands.
B) The organism lived for a very limited period of geologic time.
C) The fossils of the organism are exceptionally well preserved.
D) The organism lived on the land, not in the ocean.
Question 2
Using the known rates of radioactive decay to date the crystallization of certain minerals is known as ________ dating.
A) conventional
B) radiometric
C) relative
D) fossil assemblage
Fossil mosasaur Prognathodon, a varanoid
Wearing safety equipment is essential at all ages
Teaching women about the safety of drug use during pregnancy is an essential component of nursing ...
Multicelled organism
Pulegone, a cyclic monoterpene, can be isolated from the essential oil of pennyroyal, a member ...