in freeliving flatworms, the tube like muscular organ that can extend out of the mouth and such 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

the pseudocoelom in roundworms; the fluid within a closed space that gives rigid support for muscles to work agianst

disease caused by eating raw or undercooked meat, usually pork, infected with trichinella larvae

membrane that surrounds a mollusks internal organs

rasping tongue like organ with rows of teeth that many mollusks use in feeding.

respiratory structure of most mollusks and aquatic artropods

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 intestines

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

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Chapter 25 Vocab

Question	Answer
pharynx	in freeliving flatworms, the tube like muscular organ that can extend out of the mouth and such food particles into the digestive tract.
flame cell	in flatworms, a cilia lined, bulblike cell that moves water and certain substances into excretory tubules for elimination outside the body
ganglion	group of nerve-cell bodies that coordinates incoming and outgoing nerve impulses
regeneration	ability to replace or regrow body parts missing due to predation or damage.
scolex	parasitically adapted, knob-like anterior end of a tapeworm, having hooks and suckers that attach to the host's intestinal lining
proglottid	continuously formed, detachable section of a tapeworm that contains male and female reproductive organs, flame cells, muscles, and nerves
hydrostatic skeleton	the pseudocoelom in roundworms; the fluid within a closed space that gives rigid support for muscles to work agianst
trichinosis	disease caused by eating raw or undercooked meat, usually pork, infected with trichinella larvae
mantle	membrane that surrounds a mollusks internal organs
radula	rasping tongue like organ with rows of teeth that many mollusks use in feeding.
gill	respiratory structure of most mollusks and aquatic artropods
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
nephridium	structure through which most mollusks eliminate metabolic wastes from cellular processes.
siphon	tubular organ through which octopuses and squids eject water, at times so rapidly that their movement appears jet-propelled.
crop	sac in which food and soil are stored until they pass to the earthworms gizzard
gizzard	muscular sac in birds that contains hard particles that help grind soil and food before they pass into the intestines
seta	tiny bristle that digs into soil and anchors an earthworm as it moves forward
clitellum	thickened band of segments that produce a cocoon from which young earthworms hatch

Created by: rroberto

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