The characteristic that defines the Paleozoic era is:
Animals with shells and hard parts were dominant for the first time.
This era is noted for the emergence and diversification of complex life forms, including those with hard shells.
Responses
Animals with shells and hard parts were dominant for the first time.
Animals with shells and hard parts were dominant for the first time.
Mammals and other warm-blooded animals became dominant.
Mammals and other warm-blooded animals became dominant.
Reptiles became dominant after a mass extinction.
Reptiles became dominant after a mass extinction.
Simple, one-celled life forms were dominant.
1 answer
The characteristic that defines the Paleozoic era is:
Animals with shells and hard parts were dominant for the first time.
This era is noted for the emergence and diversification of complex life forms, including those with hard shells.