What's the Matter?
Fossils that define and identify geologic periods.
Index fossils
a. 1
b. 2
c. 3
d. 4
a. one type of organism
b. two types of organisms
c. at least one plant and one animal
d. a wide variety of organisms
a. Mars
b. Neptune
c. Jupiter
d. Saturn
a. maples and oaks
b. algae and seaweed
c. bacteria and fungi
d. pines and cedars
a. Venus
b. Earth
c. Mercury
d. Mars
a. Jupiter
b. Venus
c. Mars
d. Mercury