Question

which feature do amber fossils have that mold fossils do not? preserved soft tissue organisms turned into rock solid copies of the original organism impressions of hard tissue left by organisms

Explanation:

Amber fossils trap entire organisms, including delicate soft tissues like skin or organs, in tree resin that hardens. Mold fossils only form as impressions of an organism's hard parts (like bones or shells) in sediment, with no soft tissue preserved. The other options describe features of mold or other fossil types: mold fossils do not turn organisms to rock (that's permineralization), are not solid copies (that's cast fossils), and are the impressions of hard tissue themselves.

Answer:

preserved soft tissue