My compliments. An interesting assignment for your students. How detailed would you like the replies? I would say the student essay you posted covers the basics of those two areas quite well - if not in excruciating detail.
The reason I ask is that several of the points you raise would require fairly lengthy responses to cover adequately. As a for instance, the coelocanth statement:
Further proof comes from living fossils like the Coelecanth. The Coelecanth is a fish presumed extinct for 200 million years and used as an index fossil for an ancient layer, but it turns out it is alive and capable of being fossilized today!
This is in essence erroneous. In the first place, it's not a "living fossil" because
Latimeria chaumnae has never been found as a fossil. In fact, no other species assignable to the Genus Latimeria has been found as a fossil either.
Latimeria and the Cretaceous fossil genus
Macropoma are closely related, and they're included in the same taxonomic family. Beyond that, all fossil coelacanths belong to the order Coelacanthini. Basically, the coelacanths that are being caught off Madagascar are NOT the same animal that lived around 360 mya, nor are they the same animal that is found in the late Cretaceous shallow marine strata dated around 80 mya. There are differences in Don't confuse a member of a large group (taxon like "order") with the group itself.
There was actually a pretty good discussion about living fossils awhile back.
This thread covers the topic fairly well - although you'll have to interpolate a bit with the creationist ksc, who went back and deleted all his posts in a fit of pique. Most of his responses, however, are included in the counters by various people.
[This message has been edited by Quetzal, 02-13-2003]