Biology, 07.03.2020 02:40, kxngtj3

Study this image of a geologic time scale
How long ago did invertebrates become common on Earth
ERA
PERIOD
MILLIONS OF
YEARS AGO
KEY EVENTS
Humans evolve
Qualorary
Torta
1.6 million years ago
132 million years ago
410 million years ago
520 million years ago
Cretace
Extinction of
Ons
TE
Para
Carbon
con
Invers
become common
Errente

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Study this image of a geologic time scale
How long ago did invertebrates become common on Eart...