350Million of years ago450500550600650Late400ProterozoicActivity 3: Let's TraceLook and analyze at the illustration below and answer the question listed below.GEOLOGIC TIME SCALE, 650 MILLION YEARS AGO TO THE PRESENTera01.8periodCenozoicQuaternaryTertiaryeventsevolution of humansmammals diversify50extinction of dinosaursfirst primates100Cretaceous28150Mesozoicfirst flowering plantsfirst birdsJurassicdinosaurs diversify200first mammalsTriassicfirst dinosaurs250major extinctionsPermianreptiles diversify300PalezoicCarboniferousPennsylvanianMississippianfirst reptilesscake trees.seed fernsfirst amphibiansDevonianjawed fishes diversifySilurianOrdovicianCambrianfirst vascular land plantssudden diversification ofmetazoan familiesfirst fishesfirst chordatesfirst skeletal elementsfirst soft-bodied metazoansfirst animal traces1. For how long has there been life on Earth?
Answer (1)
Answer:The image shows the Geologic Time Scale, which is a timeline of Earth's history. Based on the image, life on Earth has existed for at least 650 million years. This is because the earliest animal traces are found in the Cambrian period, which began around 650 million years ago.
