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7-5 Branching Trees
CA Life Science - Chapter 7 Changes over Time
5
Science
7th Grade
01/22/2012

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Term
Branching tree diagram
Definition
Shows probable evolutionary relationships among organisms.  Also shows the order in which specific characteristices may have evolved.
Term
Shared derived characteristic
Definition
Usually a homologous structure, like a backbone, that is shared by all organisms in a group
Term
Hoes does a branching tree diagram show evolutionary relationships?
Definition
_____ ____ _____ shows evolutionary relationships by grouping organisms according t shared derived characteristics.
Term
On a branching tree diagram, how do lower items on a tree compare to higher items?
Definition
Characteristics lower on the tree probably evolved prior to those higher (backbone came before boackbone with 4 limbs). 
Term
The "Common Ancestor" is where on the branching tree diagram?
Definition
The "____ ____" is at the bottom on the branching tree diagram.
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