Respuesta :
Answer:
footprint, shell,
Step-by-step explanation:
trace fossils are non physical fossils. since shells are imprints instead of actual shell fossils, shell and footprint is the correct answer
Answer:
footprint, shell,
Step-by-step explanation:
trace fossils are non physical fossils. since shells are imprints instead of actual shell fossils, shell and footprint is the correct answer