Put the following organisms (or group of organisms) in order of their appearance

Question

Put the following organisms (or group of organisms) in order of their appearance in the fossil record. Burgess shale fauna Ediacaran Fauna Stromatolites Graptolites What of the following is false about the "Cambrian Explosion"? Ediacaran fauna appeared Soft body multicellular organisms appeared The diversification of metazoans started Organisms with hard parts become diverse and abundant A+B are false A+B+C are false A+B+C+D are false A+C are false What of the following is false about the Semail Ophiolites? The emplacement occurred during the Late Creataceous Related to an extensional tectonic regime Caused by the movement of African plate toward North East Caused by obduction of oceanic crust on top of continental crust Mainly consists of mafic and ultramafic rocks

Explanation / Answer

20) Oldest to Youngest - Stromatolites - Ediacaran - Burgess Shale Fauna - Graptolites

21) E. (a+b are false)

22) C. Movement of African plate to North East

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