When you are at the UNIX prompt, type pico testtwo.txt (or whatever you called the file). This will put you in the editor. You can now type your responses to the test questions. I suggest you save often (the save command is the typing the control key and the "O" key at the same time). By using the editor rather than the mail program you can type your answers at your leisure and exit and enter the editor as often as you as the time and as when you find the answers.
You can delete this header by putting the cursor at the start of each line and typing a control-k. You can also use the delete key and back up over the material.
To answer the questions simply put the cursor at the end of the question line and hit return and then start typying your answer. Always make sure that you type a control-o to save what you are working on. To exit the editor type a control-x. To get back to your file when you are at the oz prompt, simply type pico "filename" where filename is the name of your test/answer file.
To send the file to me, re-enter the mail program. Type m to mail a file. Type lts as the person to send to and Answers as the subject of the message. Send yourself a copy by typing your own name in the CC:. You will then be put in the editor. Type control-r to retrieve your file. You will then have to type a control-t to see a listing of files. Highlight the file you saved the message in and hit the return key. Type control-o to save file, control-x to exit, and then hit the s to send the file. If you copied yourself, you will receive a mail message with your answers.
If at any time you have problems, call or see me.
Cheers,
lts
Invertebrate Zoology Name __________________ 27 November 1995 Second Class Examination--Movement and Foodgetting A. For each of the following, describe the structure and function: 1. siphon (squid) 2. beak (squid) 3. actin fibers 4. dart sac 5. plasma sol 6. collar (porifera) 7. siphonophore (cnidaria) 8. eye (squid) 9. gills (lammellibranch bivalves) 10. mucous sac (inn keeper worm) B. Compare and contrast the following sets of terms with respect to structure and function in the group denoted. 1. movement and buoyancy: cranchid squid and cuttlefish 2. movement in horizontal direction: flatworms and snails 3. maintenance of vertical position: Portuguese man-o-war and foraminiferans 4. forward movement: flagelates and cilliates C. Concepts 1. Briefly describe the concept of "Optimal Foraging Strategy". Include in your answer both theoretical and practical aspects. 2. Briefly describe the role of lever systems in animal locomotion 3. What relationship does the concept of "Reynold's number" play to animal movement? 4. How does predation differ from grazing in terms of make-up of food consumed, way in which the material is obtained, and how the material is handled once found? D. Miscellaneous Stuff 1. Briefly describe some of the theories concerning pseudopodial locomotion. What serendipitous event took place that gave a different insight as to how pseudopodial locomotion occurs? What are our present thoughts as to the energy and structural explanations? 2. Many mid-water squid can move rather rapidly. Describe specifically the nature of the force producing structure? What feature enables the muscle of this structure to contract in an efficient manner so as to produce the force necessary for movement? How is this associated with the actual process of food capture? 3. Many insects are able to fly. Briefly describe the two main modes of flight, including in your answer information as to structures, and functions of those structures. What aspect of body construction enable them to flap their wings at a rate greater than the arrival of nerve impulses? 4. Many invertebrates live at great depths in the ocean. Briefly describe how these animals can withstand the pressures they might experience (pressure increases in the ocean at one atmosphere per ten meters).