Analogous structures have similar functions but different evolutionary origins. Similar selection pressures can produce convergent evolution; bat and insect wings are an example.
Convergent evolution increases similarities, despite differences in origins.
Explain how analogous structures can evolve.
a. evolution occurs by natural selection;
b. analogous structures come from convergent evolution;
c. analogous structures have similar functions or structures evolved from different ancestry;
d. similar conditions/environments have similar selective pressures favouring similar adaptations;
e. similar functions/functional requirements result in similar adaptations/structures;
f. e. g. torpedo shaped body in sharks and whales to facilitate swimming/ another verified example;