Ex07_pg13-14 - EXERCISE 7 Page 13 of 14 Analysis To be...

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EXERCISE 7 Page 13 of 14 199 Analysis To be completed individually and turned in at the beginning of the next laboratory period. As directed by your laboratory instructor, include your “Data & Results”. Show your work for all calculations and/or print your MS Excel data sheets. Be sure to proper include units as appropriate. (1) List the functions of the following external structures: a. Chelapeds b. Walking legs c. Maxillapeds d. Mandibles e. Genital pore f. Nephridiopore g. Eye h. Uropod/telson (2) List (in order from mouth to anus) the internal structures of the crayfish digestive system that are responsible for digestion and absorption of nutrients. Include the function of each structure in this context. At what structure are nutrients absorbed from ingested food? Where does the crayfish excrete waste? Does this make sense considering the direction a crayfish swims? (3) Consider a crayfish that has a potential meal move into its field of vision. List the crayfish structures involved in its response to the visual stimulus of food. Move in chronological order,
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Ex07_pg13-14 - EXERCISE 7 Page 13 of 14 Analysis To be...

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