study this image of a geologic time scale. how long ago did invertebrates become common on earth? 1.6…

study this image of a geologic time scale. how long ago did invertebrates become common on earth? 1.6 million years ago 132 million years ago 410 million years ago 520 million years ago

study this image of a geologic time scale. how long ago did invertebrates become common on earth? 1.6 million years ago 132 million years ago 410 million years ago 520 million years ago

Answer

Explanation:

Step1: Locate key - event in table

Find "Invertebrates become common" in the "KEY EVENTS" column.

Step2: Read corresponding time

The corresponding value in the "MILLIONS OF YEARS AGO" column is 520 million years ago.

Answer:

520 million years ago