91Ó°ÊÓ

______ is a way of reconstructing evolutionary history based on derived traits. a. Natural selection b. Coevolution c. Gene flow d. Cladistics

In evolutionary trees, each node represents a(n) ______ a. single lineage b. extinction c. divergence d. adaptive radiation

Match the evolutionary concepts. $$ \text {gene flow} \quad \quad\quad\quad\quad \text {a. can lead to interdependent species} $$ $$ \text {sexual selection} \quad \quad\quad\quad\quad \text {b. changes in a population's allele frequencies due to chance alone} $$ $$ \text { extinct} \quad \quad\quad\quad\quad \text {c. alleles enter or leave a population} $$ $$ \text { genetic drift} \quad \quad\quad\quad\quad \text { d. evolutionary history} $$ $$ \text { phylogeny } \quad \quad\quad\quad\quad \text {e. operates on variation in shared traits} $$ $$ \text { adaptive radiation} \quad \quad\quad\quad\quad \text { f. adaptive traits make their bearers better at securing mates} $$ $$ \text { derived trait } \quad \quad\quad\quad\quad \text {g. no more living members} $$ $$ \text {coevolution} \quad \quad\quad\quad\quad \text {h. diagram of sets within sets } $$ $$ \text { natural selection} \quad \quad\quad\quad\quad \text {burst of divergences from one lineage into many} $$ $$ \text { cladogram} \quad \quad\quad\quad\quad \text {j. present in a group, but not in any of the groups ancestors} $$

The evolution of wings helped the insect clade to be very successful. In this example, wings are a(n) ________ a. derived trait b. adaptive trait c. key innovation d. all of the above