Unformatted text preview: 3. What is the function of hooks and suckers on the scolex of a tapeworm? __________ To attach to the host __________________________________________________ 4. (2 points) Describe how dogs get infected with hookworms: Hookwork eggs are passed in the feces and hatch in the soil. In 1 week they can infect a host. They contact the dog’s skin and burrow into it. They go through the blood to the heart and lungs. From the lungs they are carried to the glottis and are swallowed. They grow, molt, mature, and mate in the small intestine. After 4 weeks they produce eggs. 5. (2 points) Label the structures: A __ Gut __________________ B __ Endoderm ____________ C __ Coelom ______________ D __ Ectoderm ____________ 6. Circle the correct answer - The body plan illustrated above is characteristic of a(n): a. acoelomate b. pseudocoelomate c. eucoelomate A B C D...
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- Spring '08
- Mesoderm, Body cavity, ZOOLOGY LAB LAB, Pseudocoelomates Body Organization Protoplasmic Cellular Tissue