anaguzman anaguzman

31-05-2017
Biology

contestada

PLEASE HELP!!!
The Paleozoic Era ended with the abrupt disappearance of many land and marine species. This type of event in geological time is known as
Select one:
a. mass extinction
b. endangered species
c. boundary transition
d. transitional change.

Respuesta :

kchensink kchensink

31-05-2017

The answer is A: Mass extinction.

"Abrupt disappearance of many land and marine species" = extinction of many species.

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