Chapter 17 Section 1

Question 1

the grouping of objects or organisms based on a set of criteria

Answer 1

classification

Question 2

(animals) contains related classes

Answer 2

phylum

Question 3

(bacteria + plants) contains related classes

Answer 3

division

Question 4

taxon composed of related phyla or divisions

Answer 4

kingdom

Question 5

the broadest of all the taxa and contains one or more kingdoms

Answer 5

domain

Question 6

the evolutionary history of a species

Answer 6

phylogeny

Question 7

inherited features that vary among species

Answer 7

character

Question 8

a model that is used to compare DNA sequences from two different species to estimate how long the species have been evolving since they diverged from a common ancestor

Answer 8

molecular clock

Question 9

a method that classifies organisms according to the order that they diverged from a common ancestor

Answer 9

cladistics

Question 10

is a branching diagram that represents the proposed phylogeny or evolutionary history of a species or group

Answer 10

cladogram

Question 11

the species classified in Domain Archaea

Answer 11

achaea

Question 12

eukaryotic organisms that can be unicellular, colonial, or multicellular

Answer 12

protist

Question 13

a unicellular or multicellular eukaryote that absorbs nutrients from organic materials in its environment

Answer 13

fungus

Question 14

a discipline of biology primarily concerned with identifying, naming, and classifying species based on natural relationships

Answer 14

taxonomy

Question 15

gives each species a scientific name that has two parts

Answer 15

binomial nomenclature

Question 16

a named group of organisms

Answer 16

taxon

Question 17

a group of species that are closely related and share a common ancestor

Answer 17

genus

Question 18

family

Answer 18

the next higher taxon, consisting of similar, related genera

Question 19

order

Answer 19

contains related families

Question 20

class

Answer 20

contains related orders