Systematics And The Phylogenetic Revolution Worksheet With Answer Key - Chapter 23 Page 5
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1921. Derived character states shared by clade members are called
A.
ancestral traits.
B.
homoplasies.
C.
synapomorphies.
D.
plesiomorphies.
E.
symplesiomorphies.
22. The following steps are used to construct a cladogram that best reflects the evolutionary
relationships of a group of species. If you arranged these steps from first to last, which step would
be last?
A.
polarize the characters
B.
establish the character states
C.
gather data on characters to be used
D.
apply the principle of parsimony
E.
select an outgroup
23. Character states shared by the ancestor or outgroup of a clade are called
A.
derived traits.
B.
homoplasies.
C.
synapomorphies.
D.
plesiomorphies.
E.
symplesiomorphies.
24. Homoplasies can result from
A.
convergent evolution.
B.
evolutionary reversals.
C.
both convergent evolution and evolutionary reversals.
D.
divergent evolution.
E.
adaptive radiations.
25. Birds, snakes, lizards, turtles, and crocodiles are all thought to share a common ancestor and
several homologous traits. Assuming that this is true, these groups of animals would best represent
A.
a polyphyletic group.
B.
a monophyletic group.
C.
homoplastic convergence.
D.
several clades.
E.
a species cluster.
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education