Which of the following is a good example of homoplasy (convergent ev.pdf

Which of the following is a good example of homoplasy (convergent evolution)?
a. Dolphins and humans
b. Apes and monkeys
c. Dolphins and fish
d. Dolphins and whales
e. Cats and bats
Wings of bats are:
a. Plesiomorphic (ancestral) feature for mammals
b. Plesiomorphic feature for bats and birds
c. Synapomorphic (shared-derived) feature for vertebrates
d. Synapomorphic feature for bats
e. Synapomorphic feature for bats and birds
Solution
1). c. Dolphins and fish
Analogous structures (convergent evolution) are not found in the common ancestors but the same
structure or similar structure with the same function can be found in one or more groups. In such
cases, it is not clear to tract the ancestry but the homologous structures are helpful to track the
ancestry. For example, both the dolphins and sharks share the fins but the dolphins are mammals,
while the shark are fish..

1. Which of the following is a good example of homoplasy (convergent evolution)?
a. Dolphins and humans
b. Apes and monkeys
c. Dolphins and fish
d. Dolphins and whales
e. Cats and bats
Wings of bats are:
a. Plesiomorphic (ancestral) feature for mammals
b. Plesiomorphic feature for bats and birds
c. Synapomorphic (shared-derived) feature for vertebrates
d. Synapomorphic feature for bats
e. Synapomorphic feature for bats and birds

Solution

1). c. Dolphins and fish
Analogous structures (convergent evolution) are not found in the common ancestors but the same
structure or similar structure with the same function can be found in one or more groups. In such
cases, it is not clear to tract the ancestry but the homologous structures are helpful to track the
ancestry. For example, both the dolphins and sharks share the fins but the dolphins are mammals,
while the shark are fish.