answer gradualism Explanation: gradualism refers to the type of evolution that takes a long time
The coelacanth is another lobe-finned fish that is a living fossil. It is thought to have evolved into roughly its current form about 408 million years ago, during the early Devonian, and has not essentially evolved further from its ancient form.
The last one
Cell,tissue,organ,organ system,organism
Sedimentary rocks do not undergo heating it’s metamorphic rocks that do.