What is a trace fossil? fossil evidence of organisms other than conventional fossils of hard body parts a fossil which is part of a series of fossils that trace the evolution of a group of species a small fossil a fossil that allows scientists to trace the movement of the fossilized organism?

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Me with these questions image attached