Thanks for visiting! A few years back, I briefly covered a throwaway Yahoo! article about how âcarbs will make you lose weightâ because so many readers had emailed about it. It turned out that the âcarbsâ in the article were resistant starch, a type of carbohydrate that our digestive enzymes cannot break down. Iâll admit now, with regret, that I didnât look as deeply into the matter as I might have.
Appendages that can become prehensile include: 1  Prehensile feet: The hands of primates are all prehensile to varying degrees. The claws of cats are prehensile. 2  Prehensile tails â Many extant lizards have prehensile tails (geckos, chameleons, and a species of skink). Seahorses grip seaweed with their tails. Several fossil animals have been interpreted as having prehensile tails, including several Late Triassic drepanosaurs, and possibly the Late Permian synapsid Suminia.
Chordata-Vertebrates, Tunicates, Lancelets. At some point, all of the organisms in this phylum have a structure called a notochord. A notochord is a flexible rod-like cord of cells that provides the main support for the organism's body during its embryonic stage.n some primitive species, the slits are used to filter food out of the water. In other species, like fish, the pharyngeal slits have gills. In other species, like mammals, the pharyngeal slits are only present during the embryonic stage. Chordates also have a dorsal nerve cord that runs down the length of the organism.