10. Watch the frog float and swim in the aquarium. How does the frog use its legs to swim? Notice the position of the frog's head.

11. As the frog swims, bend down and look up into the aquarium so that you can see the underside of the frog. Then look down on the frog from above. Compare the color on the dorsal and ventral sides of the frog. When you are finished observing the frog, your teacher will remove the frog from the aquarium.

12. Record your observations of the frog's skin texture, swimming behavior, and skin coloration in your data table.

Analysis and Conclusions

1. From the position of the frog's eyes, what can you infer about the frog's field of vision?

2. How does the position of the frog's eyes benefit the frog while it is swimming?

3. How does a frog hear?

4. How can a frog take in oxygen while it is swimming in water?

5. Why must a frog keep its skin moist while it is on land?

6. How are the hind legs of a frog adapted for life on land and in water?

7. What adaptive advantage do frogs have in showing different coloration on their dorsal and ventral sides?

8. What features provide evidence that an adult frog has an aquatic life and a terrestrial life?

9. What adaptations does the frog display in order to eat? What senses are involved in catching prey?

10. What movement does the frog make in order to breathe?

Further Inquiry

Observe other types of amphibians, or do research to find out how they are adapted to life on land and in water. How do the adaptations of other types of amphibians compare with those of the frog you observed in this investigation?

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