Question

which part of an organism is preserved in cast and mold fossils?
skin
bone
muscle
soft tissue

Explanation:

Cast and mold fossils form when hard parts (like bones) of an organism are buried in sediment. The sediment hardens around the bone (forming a mold), and then minerals fill the mold to create a cast. Soft tissues (skin, muscle, soft tissue) decay more easily and are not typically preserved in this fossil type.

Answer:

bone