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.
Insects have a head, thorax, and abdomen, with three pair of legs (6 legs) on the thorax. (Crustaceans have legs on the abdomen as well as on the thorax). Most insects have one or two pairs of wings. They are the only invertebrates that fly.he first pair of appendages are the chelicerae, and the second pair are pedipalps, appendages modified for sensory functions or for manipulating prey. They are mostly carnivorous (many mites are herbivores).