BIOL120 BIOL 120 Homepage

Diversity Questions

(answers WAY DOWN at bottom of page)

A. Most taxonomists today believe that classification systems should be

1. phylogenetic
2. monophyletic
3. paraphyletic
4. polyphyletic
5. changed

B. Someone's hypothesis of evolutionary relationships, drawn as a branching diagram, is called a

1. phylogenetic tree
2. classification
3. homologous character set
4. artificial classification

C. In a phylogenetic tree, the organisms that share the largest number of ancestral characteristics will be

1. on branches near the base of the tree
2. at the tips of upper branches of the tree
3. anywhere in the tree, depending on specific relationships
4. the farthest apart on the tree

D. In a phylogenetic tree, organisms that occur on the same branch

1. look similar because they inherited the same features from their ancestor
2. look similar because of convergent evolution
3. look similar because they evolved the same traits independently of each other
4. look different because they do not share a common ancestor

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Answers: A1, B1, C1, D1, E2

modified 1/28/04