9. Why is the occurrence of
eyelids in amphibians in
comparison to their absence in
fish an adaptation to
terrestrial life?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Eyelids associated to glands
protect and eyes lubricated against
from the great of
terrestrial environments. do not
have since their eyes in
constant contact the fluid medium.