Classification and Phylogeny

Places on a phylogenetic tree where organisms share a common ancestor are called...

• Nodes

• Branches

• Taxa

• Species

The groups in a phylogenetic tree are called...

• Taxa

• Nodes

• Roots

• Branches

The field of biology that classifies organisms is called...

• Taxonomy

• Phylogeny

• Paleontology

• Embryology

Which level of biological classification is the MOST specific?

• Phylum

• Kingdom

• Order

• Species

An analysis of DNA and RNA sequences can be used to classify organisms. Which statement is best supported by the information in this dendrogram?

• Lesser pandas are more genetically similar to giant pandas than they are to raccoons.

• Brown bears are more genetically similar to giant pandas than they are to sun bears.

• Lesser pandas are more genetically similar to raccoons than they are to giant pandas.

• The bear species are all more genetically similar to dogs than they are to giant pandas.

Tags

NGSS.MS-LS4-2

​ (a)   is a branching diagram showing relationships among groups of clades while a ​ (b)   is a branching diagram that shows the inferred relationships between various species.

• cladogram

• phylogenic tree

Cladistics is a method of classification based on what principle?

• The geographical distribution of species.

• The chronological order of species emergence.

• The common ancestry and evolutionary relationships between organisms.

• The physical similarities among organisms without regard to their evolutionary relationships.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

According to the phylogenic tree which organism is LEAST closely related?

• A

• B

• C

• D

• E

Tags

NGSS.MS-LS4-2

What do the nodes (the black dots) represent?

• Common Ancestor

• Modern Species

• Extant Species

• Extinct Species

Tags

NGSS.MS-LS4-2

Select the area on the cladogram that identifies the MOST RECENT common ancestor?

Tags

NGSS.MS-LS4-2