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1. What is the function of the gill rakers?
2. Explain how gas exchange occurs at the gills.
3. What is the function of the lateral line?
4. Describe how the scales are arranged on the trunk & tail of a tilapia.
5. Explain how the swim bladder controls buoyancy.
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- 4. Describe how the scales are arranged on the trunk & tail of a tilapia.5. Explain how the swim bladder controls buoyancy.1. Is there a male or female crayfish? 2. How many swimmerets does a crayfish have? 3. How many rows of gills does the crayfish have? Where do the gills attach? 4. Where can find the stomach and the digestive glands of crayfish? What does the stomach attach to directly? 5. Locate the green glands. What is the function of this structure?1. How many swimmerets does your crayfish have? 2. How many rows of gills does the crayfish have? 3. Where do the gills attach? 4. What does the stomach attach to directly? 5. Try to locate the green glands. What is the function of this structure?
- 8. What is the difference between an open and a closed circulatory system? 9. What is a radula? What is it used for? 10. Define regeneration. 11. Identify distinguishing traits of most arthropods. 12. What is molting? Why does it occur? 13. Name three arthropod head appendages and state their functions. 14. Describe two structures that allow arthropods to breathe air.1. Discuss how starfish have radial symmetry but yet contain ganglia is due to their ancestors? 2. What are the classification of starfishes ? 3. How are they related to bilateral animal? Note: Answer question 1,2,3. Thanksthis is a brachiostama, label the nerve cord, notochord, gill slits, pharynx, anus and atriopore use arrows please
- 1. Compare and contrast an Acanthocephalan and a Rotifer by providing 5 points of comparison. Point of comparison Rotifer Acanthocephalan 1. 2. 3. 4. 5. 2. What structures are found in Acanthocephalans which allows them to perform its endoparasitic life? Explain1. Describe a function for the following structures and name the phylum/class in which these structures are found. Structures Function Phylum/Class Spicules Nematocytes Notochord Tube feet Polyp Choanocytes Pharyngeal slits Amoebocytes DenticlesWhat is the purpose of gill slits?
- 1. State the function of the following parts of the genus Romalea (grasshopper): antenna, tympanum, spiracles, ovipositor (female), gastric caeca, malphigian tubules, tracheae, air sacs What are the hairlike appendages called that anchor into the skin of annelids? What structures do earthworms have to help dispose of nitrogenous wastes? Briefly describe how earthworms reproduce and what structures are involved.1. Both Lepidoptera and Diptera have proboscis. true/false. 2. Phthirapterans have large claws that allow them to grab hairs of mammals and birds. true/false 3. Coronal and frontal sutures can be split when molting. true/false 4. Collembola has a pair of furcula. true/false1. Describe the three body types of Sponges and identify the class possessing the body type and its spicules. 2. Give the classes of Cnidarians and describe their life forms and body structures.
