IN flatworms, a cilia-lined, bulb like 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.

In free-living flatworms, the tube like muscular organ that can extend out of the mouth and suck food particles into the digestive tract.

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.

Ability to replace or regrow body parts missing due to predation or damage.

Parasitically adapted, knoblike anterior end of a tapeworm, having hooks and suckers that attach to the host's internal lining.

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

Elongated, cylindrical structure that can discharge a spine like structure that may function in defense, as an anchoring device, or to capture prey.

Closed Circulatory System

Blood is confined to the vessels as it moves through the body.

Respiratory structure of most mollusks and aquatic arthropods.

Membrane that surrounds a mollusk's internal organs.

Structure through which most mollusks eliminate metabolic wastes from cellular processes.

Open Circulatory System

Blood is pumped out of vessels into open spaces surrounding body organs.

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

Tubular organ through which octopuses and squids eject water, at times so rapidly that their movement appears jet-propelled.

Thickened band of segments that produce a cocoon from wich young earthworms hatch.

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 food before they pass into the intestines.

Tiny bristle that digs into soil and anchors an earthworm as it moves forward.

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Chapter 25 vocab

Biology 2 vocab

Term	Definition
Flame Cell	IN flatworms, a cilia-lined, bulb like 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.
Pharynx	In free-living flatworms, the tube like muscular organ that can extend out of the mouth and suck food particles into the digestive tract.
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.
Regeneration	Ability to replace or regrow body parts missing due to predation or damage.
Scolex	Parasitically adapted, knoblike anterior end of a tapeworm, having hooks and suckers that attach to the host's internal lining.
Hydrostatic skeleton	The pseudocoelom in roundworms; the fluid within a closed space that gives rigid support for muscles to work against.
Trichinosis	Elongated, cylindrical structure that can discharge a spine like structure that may function in defense, as an anchoring device, or to capture prey.
Closed Circulatory System	Blood is confined to the vessels as it moves through the body.
Gill	Respiratory structure of most mollusks and aquatic arthropods.
Mantle	Membrane that surrounds a mollusk's internal organs.
Nephridium	Structure through which most mollusks eliminate metabolic wastes from cellular processes.
Open Circulatory System	Blood is pumped out of vessels into open spaces surrounding body organs.
Radula	Rasping tongue like organ with rows of teeth that many mollusks use in feeding.
Siphon	Tubular organ through which octopuses and squids eject water, at times so rapidly that their movement appears jet-propelled.
Clitellum	Thickened band of segments that produce a cocoon from wich young earthworms hatch.
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 food before they pass into the intestines.
Seta	Tiny bristle that digs into soil and anchors an earthworm as it moves forward.

Created by: Jsmith3

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