5 Written Questions

1. Cells that increase surface area
2. Acts like kidneys eliminating liquid toxins
3. Mouth moistens food, sucks into pharynx
4. thicken and shorten muscles as they contract, attach setae to soil as a grip for movement
5. Ground up in gizzards when ready for processing

5 Matching Questions

1. Germ Layers
2. Mating Process (1)
3. Circulatory system
4. Earthworm Sexual Orientation
5. Mating Process (3)

1. a Citellum becomes cocoon where eggs are incubated 2-3 weeks, hatched out in soil
2. b Specialized tissue, can generated after worm is cut in half
3. c Dorsal blood vessel act like a heart, taking oxygenated blood from capillaries, pumps blood doing peristalsis, has a total of 10 hearts
4. d Face opposite, slide along each other lining up gonopores
5. e Hermaphrodites

5 Multiple Choice Questions

1. Food moved to esophagus
   1. Digestive Track (2)
   2. Digestive Track (3)
   3. Digestive Track (6)
   4. Digestive Track (1)
2. complex tissue-origins
   1. Coelom
   2. Germ Layers
   3. Nephridospore
   4. Differentiation
3. Brain in anterior end is mass of nerve cells (ganglia), 1 longitudinal nerve cord runs length of body. Septum divides into compartments and nerve cord branched out connecting to each segment
   1. Germ Layers
   2. Circulatory system
   3. Nervous System
   4. Reproductive System
4. contract and pull worm forward and elongates
   1. Circular Muscles
   2. Longitudinal Muscles
   3. Reproductive System
   4. Nervous System
5. Enters long intestine lined with typholsole, enzymes secreted, nutrients enter blood stream
   1. Digestive Track (5)
   2. Digestive Track (2)
   3. Digestive Track (4)
   4. Digestive Track (3)

5 True/False Question

1. Digestive Track (6) → Ground up in gizzards when ready for processing
   

   True        False

2. Reproductive System → Dual sex organs, can't fertilize its own eggs, 2 testes, sperm in seminal vesicles
   

   True        False

3. Mating Process (2) → Citellum secretes mucus, each worm deposits sperm into other through mucus film. Once completed worms separate
   

   True        False

4. Digestive Track (3) → Food exits through anus; casting (fertilizing pellets)
   

   True        False

5. Coelom → Cells that increase surface area
   

   True        False