Question

the table shows index fossils. which conclusion about paradoxides pinus is supported by the information in the table? life forms existed during the cambrian period. similar fossil species formed after the devonian period. this fossil species first appeared during the cenozoic era. different life forms were surviving during precambrian time.

Explanation:

Looking at the table, Paradoxides pinus is listed under the Cambrian period of the Paleozoic era. This directly indicates that life - forms existed during the Cambrian period. The other options are incorrect as there is no evidence in the table for similar species after the Devonian period, Paradoxides pinus did not first appear in the Cenozoic era, and there is no information about Precambrian time in relation to this fossil.

Answer:

Life forms existed during the Cambrian period.