Refer to the illustration above. the organism labeled a
a. has no symmetry.
b. is bilaterally symmetrical.
c. exhibits radial symmetry.
d. has reverse symmetry.

the trilobite is used as an index fossil for various geologic time periods as specific types of the trilobites were present in different geological time periods. they are a group of marine arthropods belonging to the class of trilobita.

explanation:

c.more precipitation,but only when emission levels.

plato users

given bodies of water

pacific / arctic / indian / southern

[ a ] the caribbean sea

[ b ] the northern ocean

[ c ] the atlantic ocean

[ d ] the barents sea

with this being the given answers