Amphibians
1. Which is the chordate class
considered an evidence of the
transition of the vertebrates
from the aquatic to the dry
land environment?
2. What are the amphibian
features that make them
dependent on water to
survive?
3. Do amphibians have direct
development?
4. How different are the
respiration in fishes and the
respiration in adult
amphibians?
5. How is respiration
performed by the larva of
amphibians?
6. How different is the
amphibian heart from the fish
heart?
7. How is excretion done in
amphibians?
8. Is fecundation in
amphibians external or
internal? In this a spectare
amphibians evolutionarily
proximal to fish or to
reptiles?
9. Why is the occurrence of
eyelids in amphibians in
comparison to their absence in
fish an adaptation to
terrestrial life?
10. What are the problems
that vertebrates needed to
solve to adapt to the
terrestrial environment since
they came from the aquatic
habitat? How does evolution
solved those problems?
11. Amphibian identity card.
How are amphibians
characterized according to
examples of representing
beings, basic morphology,
skin, respiration, circulation,
nitrogen waste, thermal
control and types of
reproduction?