What is the purpose of the notochord

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1. What is the purpose of the notochord?

2. The caudal fin is derived from what structure?

3. Why is the stomach unnecessary in the lamprey?

4. How would you distinguish a male shark from a female shark?

5. Shark oil is an old remedy that has been (and still is) used for boosting the immune system. Which organ of the shark is most likely high in oil content?

6. How can you distinguish a male or female frog based on external features?

7. How can you distinguish a male or female fetal pig based on external features?

8. Compare the animals below based on the following criteria.

Shark , Fish,  Frog, Pig

  • Reproduction:  Oviparous (lays eggs)( FROGS), 
  • Type of heart:  2-chambered (SHARK)
  • Mode of gas: exchange Uses lungs (PIG)
  • Locomotion: Fins for swimming (FISH)
  • Distinguishing characteristic

Reference no: EM132585748

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