DNA is shaped as a double helix and its nitrogen bases include thymine not uracil.
Answer:
Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develops within the deeper skin or body tissues and act as their protective covering.Explanation:
36 atp molecules are required for glycolysis to occur
They are referred to as Taxon. Please mark me as Brainliest if I was correct.