The length of carotenoids also has a role in plant coloration, as the length of the polyene tail determines which wavelengths of light the plant will absorb. Wavelengths that are not absorbed are reflected and are what we see as the color of a plant. Therefore, differing species will contain carotenoids with differing tail lengths allowing them to absorb and reflect different colors.
Rating Newest Oldest. Best Answer: they are all no, molluscs are clams, bivalves, and squid none of which have joints. Echinoderms-sea stars, urchins, and the such also do not have jointed appendages, further their bodies do not have segments.Source(s): zoology class. whiskeytangofoxtrot Â· 9 years ago.ating Newest Oldest. Best Answer: they are all no, molluscs are clams, bivalves, and squid none of which have joints. Echinoderms-sea stars, urchins, and the such also do not have jointed appendages, further their bodies do not have segments.
Those of the giant squids reach a length of 10 meters for the tentacles, and 3 meters for the arms. The tentacles are what are used to catch prey. The lower surface of these arms is covered with two rows of suckers. The tentacles of squid and octopi do have a difference.Squids have extra armature-hooks on the sucker rings.he pattern in which squid move, pumping water through the mantle, is also how squid breathe. Most sea animals have visible gills, but squids do not possess gills like most fish do, instead they obtain oxygen through a pair of long âgillsâ covered in leaflets called lamellae.