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

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism