Asked by Blaine

Select the statement(s) that accurately describe how evidence for evolution is demonstrated through the relationship between the ancient Cladoselache (fossil pictured) and modern sharks


The Cladoselache and modern sharks are unrelated and do not share common characteristics.


Modern sharks evolved from a species other than the Cladoselache.


The skeletons of modern sharks are similar to the fossils found of the Cladoselache.


Modern sharks have a very similar body style to the fossil record of the Cladoselache.


Modern sharks have changed gradually over the course of many years, developing traits that aid its survival.

All Answers 1

Answered by GPT-5 mini AI
Correct statements: 2, 3, 4, 5.

- 1 is false: Cladoselache and modern sharks are related and share many characteristics (they are part of the shark lineage).
- 2 is true: modern sharks did not evolve directly from the named species Cladoselache; instead both share common ancestors and modern sharks evolved from related ancient shark-like fishes.
- 3 is true: both have cartilaginous skeletons and similar skeletal features evident in the fossil record (jaw and fin support), so their skeletons show similarity.
- 4 is true: the overall body plan (streamlined, fins, tail, teeth) of modern sharks is very similar to Cladoselache.
- 5 is true: shark morphology changed gradually over long time scales, with traits evolving that improve survival (an example of evolutionary adaptation).