Systematics And The Phylogenetic Revolution Worksheet With Answer Key - Chapter 23

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Chapter 23 Systematics and the Phylogenetic Revolution
Student: ___________________________________________________________________________
Fill in the Blank Questions
1.
The biological specialty that deals with the grouping and naming of organisms is called taxonomy
or __________.
________________________________________
2.
The biological specialty that deals with the study of evolutionary relationships is called
__________.
________________________________________
3.
The behavior of parental care exhibited by dinosaurs is thought to be __________ to this behavior
in crocodiles and birds because phylogeny shows these three groups share a common ancestor.
________________________________________
4.
Saber teeth found in different groups of extinct carnivorous mammals are considered ___________
structures as the fossil record shows saber teeth evolved independently among the groups.
________________________________________
5.
Systematists often use molecular data in ______________ , the study of the order of evolutionary
events within a group sharing derived characters.
________________________________________
6.
A ______________ group consists of the most recent common ancestor and all of its descendants.
________________________________________
7.
A ______________ group consists of the most recent common ancestor and some of its
descendants.
________________________________________
8.
A ______________ group does not contain the most recent common ancestor.
________________________________________

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