Chapter 23: Understanding Diversity: Systematics
0.0(0)
View linked note
Learn
Practice Test
Spaced Repetition
Match
FlashcardsCard Sorting
1/20
Study Analytics
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
21 Terms
1
New cards
Systematists
________ seek to determine evolutionary relationships, or phylogeny, based on shared characteristics.
2
New cards
Taxonomy
________ is the branch of systematics devoted to naming, describing, and classifying organisms.
3
New cards
Homoplasy
The term ________ refers to superficially similar characters that are not homologous.
4
New cards
Scientific
________ names allow biologists from different countries with different languages to communicate about organisms.
5
New cards
Members of Archaea
________ and Bacteria are prokaryotes.
6
New cards
DNA
Comparisons of nucleotide sequences in ________ and RNA, and of amino acid sequences in proteins, provide important information about how closely organisms are related.
7
New cards
binomial system
In the ________ of nomenclature, the basic unit of classification is the species.
8
New cards
node
The ________ represents the most recent common ancestor of the clade represented by the branches.
9
New cards
Classification
________ is the process of arranging organisms into groups based on similarities that reflect evolutionary relationships.
10
New cards
cladogram
In a(n) ________ each branch represents a clade, a group of organisms with a common ancestor.
11
New cards
molds
The fungi, which include ________, yeasts, and mushrooms, absorb nutrients produced by other organisms.
12
New cards
Molecular systematics
________ depends on molecular structure to clarify phylogeny.
13
New cards
Cladists
________ use shared derived characters to reconstruct evolutionary relationships and diagram these relationships in cladograms.
14
New cards
outgroup analysis
They use ________ to determine which characters in a given group of taxa are ancestral and which are derived.
15
New cards
Outgroup
A(n) ________ is a taxon that diverged earlier than any of the other taxa being investigated.
16
New cards
Polyphyletic group
A(n) ________ consists of organisms that evolved from different recent ancestors.
17
New cards
Phylogenetic systematists
________ (cladists) use shared derived characters to determine relationships among groups of organisms.
18
New cards
three domain classification system
The ________ assigns organisms to domains Archaea, Bacteria, or Eukarya.
19
New cards
Node
Each ________, or branching point, represents the splitting of two or more new groups from a common ancestor.
20
New cards
Systematics
________ is the scientific study of the diversity of organisms and their evolutionary relationships.
21
New cards
The name of each species has two parts
the genus name followed by the specific epithet