The Fossil Record is used to help explain the progress of evolution of species over the geologic time scale. Large gaps exist within the fossil record, however, because

The “age of fishes”, which began with the Cambrian Period (about 541 million years ago), and ended with the Permian/Triassic extinction event (about 252 million years ago), is also known as: the Mesozoic Era the “age of birds and mammals” the Cenozoic Era the “age of reptiles” the Paleozoic Era

please see attached

What are homologous structures?     A body structure that is present in one lineage but absent in another closely related lineage.     Body structures that are similar but evolved independently in different lineages     Body structures that are similar in different lineages because they are derived from a feature present in a common ancestor

The largest and most deadly of all Mass Extinctions in the history of Earth came at the end of the Period, when only 5% of the existing species survived. Nobody knows exactly what caused this event, so it remains a mystery to this day. Quaternary Devonian Ordovician Permian

Can someone help me with this worksheet below and be very specific with the answers to the questions?

Paleontologists at Grand Staircase-Escalante National Monument discovered a new ceratopsid skull. The skull has a moderate-sized neck frill, indicating a small body, and has two short horns. The table shows rock formations at the monument and the location of known fossils relative to those formations. Ceratopsid Fossil Locations Cretaceuos-Age Rocks MYA Formation Canaan Peak 70- Triceratops Torosaurus Kaiparowits 80- Centrosaurus Chasmosaurus Wahweap Straight Cliffs 90- Zuniceratops Tropic Shale Dakota San Rafael Swell 100 Protoceratopsid Based on the evolutionary relationship suggested by the anatomy of the skull, in which of the following formations was the skull found? Dakota Wahweap Kaiparowits Canaan Peak

The field of geology helped to set the stage for the Theory of Evolution through an understanding that life on Earth is millions of years old erosion can reveal ancient strata of sediment fossils of ancient life can be found in these ancient strata of rock all of the above OO OO

The image below shows fossil layers at different locations in the Grand Canyon. Location 1 Location 2 Location 3 Location 4 In what layer does the oldest organism become extinct first? OD O A O B