Glencoe Biology chapter 25
Terms in this set (19)
in free living flatworms, the tubelike muscular organ that can extend out of the mouth and suck food particles into the digestive tract.
in flatworms, a cilia lined, bulblike cell that moves water and certain substances into excretory tubules for elimination outside the body.
group of nerve cell bodies that coordinates incoming and outgoing nerve impulses.
ability to replace or regrow body parts missing due to predation or damage
parasitically adapted, knob like anterior end of a tapeworm , having hooks and suckers that attach to the host's intestinal lining.
continuously formed, detachable section of a tapeworm that contains male and female reproductive organs, flame cells, muscles and nerves; breaks off when its eggs are fertilized and passes out of the host's intestine.
the pseudocoelom in roundworms; the fluid within a closed space that gives rigid support for muscles to work against.
disease caused by eating raw or undercooked meat, usually pork, infected with Trichinella larvae
membrane that surrounds a mollusk's internal organs
rasping tonguelike organ with rows of teeth that many mollusks use in feeding.
respiratory structure of most mollusks and aquatic arthropods
open circulatory system
blood is pumped out of vessels into open spaces surrounding body organs
closed circulatory system
blood is confined to the vessels as it moves through the body
structure through which most mollusks eliminate metabolic wastes from cellular processes
tubular organ through which octopuses and squids eject water, at times so rapidly that their movement appears jet-propelled.
sac in which food and soil are stored until they pass to the earthworms gizzard
muscular sac in birds that contains hard particles that help grind soil and food before they pass into the intestine
tiny bristle that digs into soil and anchors an earthworm as it moves forward.
thickened band of segments that produce a cocoon from which young earthworms hatch.