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Chapter 25 Vocab
Worms and Mollusks
| Question | Answer |
|---|---|
| The free living flatworms, the tube-like muscular organ that can extend out of the mouth and suck food particles into the digestive tract. | Pharynx |
| In flatworms, a cilia-lined, bulb-like cell that moves water and certain substances into excretory tubules for elimination outside the body. | Flame cell |
| Group of nerve cell bodies that coordinates incoming and outgoing nerve impulses | Ganglion |
| Ability to replace a regrow body parts missing due to predation or damage. | Regeneration |
| Parasitically adapted, knob-like anterior end of a tapeworm, having hooks and suckers that attach to the host's intestinal lining. | Scolex |
| 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. | Proglottid |
| The pseudocoelom in roundworms; the fluid within a closed space that gives rigid support for muscles to work against. | Hydrostatic Skeleton |
| Disease caused by eating raw or under cooked meat, usually pork, infected with Trichinella larvae. | Trichinosis |
| Membrane that surrounds a mollusk's internal organs. | Mantle |
| Raising tongue-like organ with rows of teeth that many mollusks use in feeding. | Radula |
| Respiratory structure of most mollusks and aquatic arthropods. | Gill |
| Blood is pumped out of vessel into open spaces surrounding body organs. | Open circulatory system |
| Blood is confined to the vessels as it moves through the body. | Closed circulatory system |
| Structure through which most mollusks eliminate metabolic wastes from cellular processes. | Nephridium |
| Tubular organ through which octopuses and squids eject water, at times so rapidly that their movement appears jet-propelled. | Siphon |
| Sac in which food and soil are stored until they pass to the earthworm's gizzard. | Crop |
| Muscular sac in birds that contains hard particles that help grind soil and food before they pass into the intestine. | Gizzard |
| Tiny Bristle that digs into soil and anchors an earthworm as it moves forward. | Seta |
| Thickened band or segments that produce a cocoon form which young earthworms hatch. | Clitellum |
| Disease caused by eating raw or under-cooked meat, usually pork, infected with Trichinella larvae | Trichinosis |
| Membrane that surrounds a mollusk's internal organs. | Mantle |
| Rasping tongue-like organ with rows of teeth that many mollusks use in feeding. | Radula |
| Respiratory structure of most mollusks and aquatic arthropods. | Gill |
| Blood is pumped out of vessel into open spaces surrounding body organs. | Open circulatory system |
| Blood is confined to the vessels as it moves through the body. | Closed circulatory system |
| Structure through which most mollusks eliminate metabolic wastes form cellular processes | Nephridium |
| Tubular organ through which octopuses and squids eject water, at times so rapidly that their movement appears jet-propelled. | Siphon |
| Sac in which food and soil are stored until they pass to the earthworm's gizzard. | Crop |
| Muscular sac in birds that contains hard particles that help grind soil and food before they pass into the intestine. | Gizzard |
| Tiny bristle that digs into soil and anchors an earthworm as it moves forward. | Seta |
| Thickened band of segments that produce a cocoon form which young earthworms hatch. | Clitellum |
Created by:
stacycastillo
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