Cartilaginous fishes made their first appearance in the fossil record between 444 and 419 MYA, which represents the starting and ending dates for the Carboniferous Period which represents the starting and ending dates for the Silurian Period which represents the starting and ending dates for the Cambrian Period which represents the starting and ending dates for the Jurassic Period which represents the starting and ending dates for the Devonian Period

Explain at least one reasonable hypothesis about what caused the extinction of the dinosaurs at theK–T extinction (abbreviation of Cretaceous–Tertiary extinction) also called the K–Pg extinction or Cretaceous–Paleogene extinction event about 66 million years ago.

Period was of unique importance to all land dwelling vertebrates. This is because during this Period aquatic vertebrates, like lobe finned fish, evolved and transitioned The into the terrestrial environment. O Cambrian Permian Devonian Silurian

Which of the following is the correct sequence of traditional fossils that provided evidence for the evolution of amphibians from the fish in order from oldest (most mya) to most recent (fewest mya) in the fossil record? -Eusthenopteron, Tiktaalik, Ichthyostega -Eusthenopteron, Acanthostega, Tikaalik -Ichthyostega,  Eusthenopteron, Panderichthys -Tiktaalik, Panderichthys, Ichthyostega - Ichthyostega, Oanderrichthys, Eusthenopteron

Mammals quickly diversified into their various recognizable forms (i.e. cats, dogs, bears, ocean dwellers, rodents, etc) during the Period, just after the dinosaurs went extinct. Neogene Paleogene Quaternary Cretaceous

Which mechanism of fossil formation created a replica of an organism's original form? a natural cast b amber-preserved c permineralization d trace fossil

Explain why mammal jawbones may have shifted to being a single solid bone from multiple bones. Explain why the huge increase in diversity is usually attributed to the Cambrian Explosion even though diversity may have actually increased prior to the Cambrian.

The Mesozoic Era is referred to as the: * O Age of Ages O Age of Reptiles O Age of Arthropods Age of Fish and Amphibians O Age of Mammals O Other:

After the Great Dying, we enter the Era which covers the evolutionary history of the dinosaurs up until they go extinct. Cambrian O Mesozoic Paleozoic O Cenozoic