what are fossils?
traces of long dead organisms found in layers of sedimentary rocks
how was the microscope important in determining the true nature of fossils?
Hooke used a microscope to inspect petrified wood. he could then see that the lines were too fine to be formed naturaly
how does biogeography contribute to an understanding of evolution?
a comparison of recently formed fossil types and with types of living organisms in the same geographical area shows that new organisms arise in areas where similar forms already lived.
Explain the evidence that indicates there has been a succession of forms?
mass extinction is an indication there has been a succession of forms
*what uncertainties would be involved in estimating a fossil's absolute age from the amount of sediment deposited above the fossil?
because layers can be very thin to thick the amount of earth above a fossil is an unclear estimate.