Problem 11
In many bird species, sex is preceded by a courtship dance. If a male's dance is unrecognized by the female, she will not mate with him. This is an example of _____. a. a sexual dimorphism b. disruptive selection c. sexual selection d. coevolution
Problem 12
Is a way of reconstructing evolutionary history based on derived traits. a. Natural selection b. Linnaean taxonomy c. Adaptive radiation d. Cladistics
Problem 13
The evolution of wings helped Pterygota, the winged 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
Problem 14
In cladograms, sister groups are _____ a. inbred b. the same age c. represented by nodes d. in the same family
Problem 15
Match the evolution concepts. $$ \text {gene flow } \quad \quad \text {a. outcome can be interdependence} $$ $$ \text {sexual selection } \quad \quad \text {b. changes in allele frequencies due to chance alone} $$ $$ \text {derived trait } \quad \quad \text {c. alleles enter or leave a population} $$ $$ \text {extinct } \quad \quad \text {d. evolutionary history} $$ $$ \text {genetic drift } \quad \quad \text {e. adaptive traits make their bearers better at securing mates} $$ $$ \text {coevolution } \quad \quad \text {f. burst of divergences from one lineage into many} $$ $$ \text {cladogram } \quad \quad \text {g. no more living members} $$ $$ \text {adaptive radiation } \quad \quad \text {h. diagram of sets within sets} $$ $$ \text {phylogeny } \quad \quad \text {i. present in a group but not in its ancestors} $$
