NAME:_________________________________
Short Assignment #2
1. What is the unit of natural selection? (What is selected?) What is the unit of
evolution? (What evolves?)
2. Draw and label a phylogeny with the follow terms labeled in the correct locations.
Tip
Node
Sister taxa
Monophyletic group
3. Label the following pairs of structures as analogous or homologous.
a.
the dorsal fins of a dolphin and a salmon
b.
the flippers of a dolphin and arm of a human
c.
a rhesus monkey’s tail and a human’s coccyx
d.
the scales on a reptile and the feathers on a bird
e.
a human female’s ovaries and a male human’s testes
f.
a bat’s wing and a dragonfly’s wing
The next few questions refer to the tree above.
4. Which of the following is more closely related to green algae: red algae or land plants?
Explain.
5. Are land plants more closely related to chordates or mollusks? Explain.
6. True or False? Jellyfish are more closely related to chordates than to fungi.
7. Identify the tree below that shows a different set of relationships between the 9 taxa
than the other two trees. Circle the difference below.
8. Explain the role of reinforcement in speciation.
9. Explain how departures from each of the 5 assumptions of Hardy-Weinberg
Equilibrium can lead to evolution.
10. Explain how Hox genes or the Homeotic box might provide evidence for
macroevolution.