BIOL 2003 Lecture Notes - Lecture 10: Love Dart, Ink Sac, Raffi
8 Jan 2018
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Scraping, drilling, piercing: even though extremely varied, they all feed with some adaptation of the radula, herbivores, scavengers, carnivores. Shooting love darts increases pressures of sperm come out of them, mucus to help keep sperm alive until they attach. Laterally compressed shells (hinged dorsally; gape open ventrally: gills: mucus and cilia bring in particles in the water to the mouth. Palp close to the mouth take out bad stuff. Foot to burrow (clams: adductor muscles to swim (scallops) Shell: nautiloids: left over lineage, only live in last chamber, buoyancy monitored by xxx (large shell, cuttlefish: (internal shell) Squid: proteinaceous pen: how they avoid predators, cephalopods don"t use shells. They are faster, inking, venomous, camouflage, eyesight, brain. Basic body: most have 1 pair of gills, 8 arms (squids and cuttlefish also have 2 tentacles, arms have suckers all over, tentacles have them at the tip and used for food manipulation, closed circulatory system.
