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kari74 [83]
4 years ago
6

Which best describes eras and periods?

Biology
2 answers:
nikklg [1K]4 years ago
3 0

Both Eras and Periods measure time after the start of the Cambrian Period, which means that your answer is:

C.



Hope it helped,



BioTeacher101

pochemuha4 years ago
3 0

The correct answer is option C, that is, eras and periods both appear at the start of the Cambrian period.  

The first geological time period of the Paleozoic Era is known as the Cambrian period. This period ended for approximately 53 million years and signifies a dramatic burst of evolutionary modifications in life on Earth also called Cambrian Explosion.  

The Cambrian period signifies an essential phase in the history of life on Earth. It is the phase when the majority of the prime animal groups initially appeared in the fossil record. An era refers to a particular time period, while a period may be used to signify towards the events, which do not exhibit any particular era or precise dates.  


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