12. Are the limbs modified
into wings of bats and the
wings of birds examples of
evolutionary analogy or
homology? What about whale
fins compared to fish fins?

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!
Bat and bird have the same
and the same (they are
modified ) so they are
and homologous organs. fins are
a of the posterior
while fish fins having the same
do not come modified
limbs; so are analogous but
homologous structures.

Evolutionary suggests
common ancestry biological
analogy relates the concept of
convergence, the
appearance similar features in
distant species that
the same type environment
(in the case, the aquatic
).