Fossil Preservation / Evolution of Vertebrates
Hi,
I have two questions that I'm working on that I just can't seem to find a proper answer for no matter how long I search. :confused:
1 The preservation of fossils in any particular location is dependent on many factors. These factors can be of a geological/physical or biological/chemical nature.
Describe any two factors from each group (i.e. geological/physical or biological/chemical) that will influence the presence and/or preservation of fossils.
2 Evolution is the concept that living organisms have changed in some manner over time.
Choose any ONE Class of Vertebrates and:
(I) State the geological time range over which they have existed.
(ii) List at least two examples of organisms which belong to the class.
(iii) For the class of vertebrates that you have chosen, briefly document at least one significant evolutionary change which has occurred that distinguishes that class from other classes of vertebrates.
I have chosen reptiles for Q2 but am open to other suggestions.
Regards
John