Chapter 25 Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| pharynx | in freeliving flatworms, the tube like muscular organ that can extend out of the mouth and such food particles into the digestive tract.
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| flame cell | in flatworms, a cilia lined, bulblike cell that moves water and certain substances into excretory tubules for elimination outside the body
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| ganglion | group of nerve-cell bodies that coordinates incoming and outgoing nerve impulses
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| regeneration | ability to replace or regrow body parts missing due to predation or damage.
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| scolex | parasitically adapted, knob-like anterior end of a tapeworm, having hooks and suckers that attach to the host's intestinal lining
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| proglottid | continuously formed, detachable section of a tapeworm that contains male and female reproductive organs, flame cells, muscles, and nerves
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| hydrostatic skeleton | the pseudocoelom in roundworms; the fluid within a closed space that gives rigid support for muscles to work agianst
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| trichinosis | disease caused by eating raw or undercooked meat, usually pork, infected with trichinella larvae
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| mantle | membrane that surrounds a mollusks internal organs
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| radula | rasping tongue like organ with rows of teeth that many mollusks use in feeding.
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| gill | respiratory structure of most mollusks and aquatic artropods
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| open circulatory system | blood is pumped out of vessels into open spaces surrounding body organs
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| closed circulatory system | blood is confined to the vessels as it moves through the body
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| nephridium | structure through which most mollusks eliminate metabolic wastes from cellular processes.
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| siphon | tubular organ through which octopuses and squids eject water, at times so rapidly that their movement appears jet-propelled.
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| crop | sac in which food and soil are stored until they pass to the earthworms gizzard
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| gizzard | muscular sac in birds that contains hard particles that help grind soil and food before they pass into the intestines
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| seta | tiny bristle that digs into soil and anchors an earthworm as it moves forward
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| clitellum | thickened band of segments that produce a cocoon from which young earthworms hatch
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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