Chapter 26: Tree of Life

Question 0

Whales and Hippos

Answer 0

DNA sequencing revealed close relationship between the two

Possibility that adaptations to aquatic environments in both species had a common origin.

Question 1

Mammals

Answer 1

Unique due to their mammary glands to feed their young

>90% of mammals = eutherians or placental mammals

Question 2

Molecular systematics

Answer 2

Provided new insight into evolutionary relationships of animals

Question 3

Hexapods

Answer 3

More closely related to crustaceans than myriapods

Question 4

Mammalian family tree

Answer 4

Continues to be refined as molecular data becomes available

Or new fossil finds

Question 5

Protists

Answer 5

Divided into six groups
But 60 known protists do not fit into any of these groups

New kingdom: Viridiplantae - includes green algae, all aquatic animals and plants

Question 6

Taxonomy

Answer 6

The science of assigning organisms to a particular level of classification called a taxon.

Question 7

Green algae (two monophyletic groups)

Answer 7

Chlorophyta

Streptophyta

Question 8

Carolus Linnaeus

Answer 8

Instituted the use of binomial names

-Binomials

Question 9

Linnaean heirarchy

Answer 9

Family
Order
Class
Phylum
Kingdoms
Domains

Question 10

Binomial Name

Answer 10

First part - genus

Second - individual species