Classification terms 2023

Classification Terms

Multiple Choice

A common ancestor of 2 species of organisms is

• the organism most closely related to a living organism

• the fossil organism most like a current organism

• The most recent ancestor they share

• the most frequent ancestor of organisms

5. cladistics

a method of classifying animals and plants

by the characteristics they have in
common.

Multiple Choice

What are Cladistics?

• A system of classification that groups organisms together according to the characteristics that have evolved most recently

• A system of classification that groups organisms together according to the characteristics that have appeared most recently

• A system of classification that groups organisms together according to the characteristics that have evolved elsewise in relation to other species

• A system of classification that separates organisms from each other according to the characteristics that have evolved most recently

4. Clade

A group that includes a common ancestor and

all the descendants (living and extinct) of that
ancestor.

Multiple Choice

A clade contains

• all organisms with similar appearances.

• organisms living within the same ecosystem.

• an ancestral species and all the organisms that came before it.

• an ancestral species and all its descendants.

6. Cladogram

 A diagram that shows evolutionary relationships.

 It is assumed that the more characteristics the two organisms share, the more

recently they diverged from a common ancestor.

Multiple Choice

Which organisms pictured on the cladogram have hair?

• prosimians only

• prosimians and humans

• humans only

• prosimians and birds

13. Taxonomy

the classification of all

organisms based on shared
characteristics

Multiple Choice

The science of describing, classifying, and naming living things is called:

• Geology

• Biology

• Taxonomy

• Chemistry

12. Taxon

group or level of organization into

which organisms are classified

Multiple Choice

What do we call the groups in which we classify organisms?

• Categories

• Classes

• Sets

• Taxons

11. Systematics

study of the diversity of life

and the evolutionary
relationships between
organisms

10. Phylogeny

the evolutionary history of a

lineage

Multiple Choice

The groups in a phylogenetic tree are called...

• Taxa

• Nodes

• Roots

• Branches

Multiple Choice

Phylogenetic trees show...

• Homologous structures through divergent evolution

• Homologous structures through convergent evolution

• Analogous structures through divergent evolution

• Analogous structures through convergent evolution

3. Binomial Nomenclature

Two word name (genus and

species) for an organism,
usually in Latin or Greek

Multiple Choice

What is binomial nomenclature?

• system of 3 names

• system of 2 names

• the names of the kingdoms

• the levels of classification

Multiple Select

Which of the following is a reason scientists use scientific names as opposed to their common names?

• Scientists around the world use the same names so there is no language barrier

• No two species have the same name, so there is no confusion about which organism is being studied

• Scientific names can help you know which organisms are related if they share a common genus name

Multiple Choice

An organism made up of one cell

• Multicellular

• Unicellular

• Triocellular

• One-cellular

Multiple Choice

An organism that has cells that lack a nucleus are called:

• Eukaryote

• Heterotroph

• Prokaryote

• Autotroph

1. Archaea

domain consisting of

unicellular prokaryotes that
have cell walls that do not
contain peptidoglycan

Multiple Choice

Are archaea multicellular or unicellular?

• Multicellular

• Unicellular

Multiple Choice

Are archaea prokaryotes or eukaryotes?

• Prokaryotes

• Eukaryotes

2. Bacteria

domain of unicellular

prokaryotes that have cell
walls containing
peptidoglycan

Multiple Choice

Are bacteria multicellular or unicellular?

• Multicellular

• Unicellular

Multiple Choice

Are bacteria prokaryotes or eukaryotes?

• Prokaryotes

• Eukaryotes

Multiple Choice

True or False: ALL bacteria are bad and will make you sick.

• True

• False

5. Eukarya

domain consisting of all
organisms that have a
nucleus

Multiple Choice

True or False: ALL organisms in the Domain Eukarya are multicellular.

• True

• False

Multiple Choice

Organisms in the Domain Eukarya are _________.

• Prokaryotes

• Eukaryotes

7. Derived Character

traits that appear in recent

parts of a lineage, not in its
older members

Multiple Choice

A trait evolved by the last common ancestor of a particular lineage

• DNA analysis

• derived characteristics

• last common characteristic

• shared characteristics

9. Motile

Can move on its own.

 Example, my phone is not motile because it

cannot move around own its own.

Multiple Choice

Capable of movement

• Motile

• Medusa

• Diffusion

• Nerve Net

Multiple Choice

Humans are:

• motile

• mobile

Multiple Choice

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

• Taxonomy

• Phylogeny

• Paleontology

• Embryology

Multiple Choice

An organism identified with binomial nomenclature includes which two taxa?

• class and order

• family and genus

• genus and species

• kingdom and phylum

Multiple Choice

A ______________ is a trait all organisms in a clade have.

• clade commonality

• derived characteristic

• domain

• Taxa