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 us 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 earthworm's 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.

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CS Chapter 25 Vocab

Chapter 25 Vocab

Term	Definition
Pharynx	In free-living flatworms, the tubelike muscular organ that can extend out of the mouth and suck 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; breaks off when its eggs are fertilized and passes out of the host's intestine.
Hydrostatic Skeleton	The pseudocoelom in roundworms; the fluid within a closed space that gives rigid support for muscles to work against.
Trichinosis	Disease caused by eating raw or undercooked meat, usually pork, infected with Trichinella larvae
Mantle	Membrane that surrounds a mollusk's internal organs.
Radula	Rasping tonguelike organ with rows of teeth that many mollusks us in feeding.
Gill	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.
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 earthworm's gizzard.
Gizzard	Muscular sac in birds that contains hard particles that help grind soil and food before they pass into the intestine.
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: christopher shaddock

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