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Unformatted text preview: CARAPACE 9. The gills are feathery or finely dissected to FEATHERY STRUCTURES 10. The main nerve cord runs on the VENTRAL side of the animal. 11. The heart is on the DORSAL side of the animal. 12. The green glands excrete NITROGENOUS WASTES through the NEPHRIDIOPORES 13. The cerebral ganglion is the BRAIN of the crayfish. 14. In the Paramecium digestion lab, methyl cellulose is added to SLOW DOWN THE USUALLY RAPID MOVEMENT OF THE ORGANISM 15. The Paramecium eat yeast cells that are stained with CONGO RED 16. The stain changes color in response to a change in pH 17. The food passes through the Paramecium contained in VACUOLES which circulate in the cell. 18. Undigested food leaves the Paramecium through the ANAL PORE 19. Food enters the Paramecium through the BUCCAL CAVITY 20. Food and water are swept by cilia into the end of the ORAL GROOVE...
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- Spring '09
- representative, Crustacean, cephalothorax, phylum ARTHROPODA Crayfish