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Classification
Test Description: Classification
Instructions: Answer all questions to get your test result.
1) One goal of scientists is to assign every organism a universally accepted name according to the system known as
A
traditional classification.
B
the three domains.
C
cladistics
D
binomial nomenclature.
2) At any level of organization, groups that have biological meaning are referred to as
A
taxa.
B
binomials.
C
cladograms
D
systems.
3) According to the rules of binomial nomenclature, which of the terms is capitalized?
A
the species name only
B
the genus name only
C
both the genus and species names
D
neither the genus nor species names
4) Based on their names, you know that the baboons Papio annubis and Papio cynocephalus do NOT belong to the same
A
class
B
family
C
species
D
genus
5) Systematics is
A
a system of classification created by Carolus Linnaeus.
B
the science of naming and grouping organisms.
C
a way to give a two-part scientific name to all organisms.
D
a list of characteristics that can be used to identify an organism.
6) Several different classes make up a
A
kingdom
B
Genus
C
family
D
phylum
7) Animals that are warm-blooded, have body hair, and produce milk for their young are grouped in the class
A
Reptilia
B
Mammalia
C
Aves
D
Amphibia
8) Traditional classifications tended to take into account primarily
A
extinct organisms.
B
DNA similarities.
C
RNA similarities.
D
visible similarities and differences.
9) The grouping of organisms based on their common descent is called
A
evolutionary classification.
B
traditional classification.
C
binomial nomenclature.
D
derived characters.
10) In an evolutionary classification scheme, species within one genus should
A
be less closely related to one another than they are to species in other genera.
B
be limited to species that can interbreed.
C
be more closely related to one another than they are to species in other genera.
D
have identical genes.
11) In biology, a trait that arose in an ancestor and is passed along to its descendants is referred to as a
A
molecular clock.
B
taxonomic group.
C
physical similarity.
D
derived character.
12) Which of the following is a correct explanation of a derived character?
A
The presence of hair is a derived character of mammals because all mammals have hair and no animals other than mammals have i
B
The presence of four limbs is a derived character of snakes because the ancestors of modern snakes had limbs, even though mod
C
Retractable claws are a derived character of carnivores because some of the animals that are carnivores have retractable claw
D
The presence of a backbone is a derived character of mammals because all mammals have a backbone.
13) Each node on a cladogram represents
A
the most recent point at which a trait was lost in a certain clade.
B
the last point at which two groups shared a common ancestor.
C
the point at which one or more species became extinct.
D
the point at which two clades joined and became monophyletic.
14) What do all organisms have in common?
A
They are all genetically identical.
B
They are all eukaryotes.
C
They are all prokaryotes.
D
They all use DNA to pass on information.
15) What cell structures in eukaryotic cells contain DNA that can be used to determine evolutionary relationships?
A
nuclei and vacuoles
B
nuclei and mitochondria
C
nuclei and cytoplasm
D
nuclei and microfilaments
16) Which kingdoms have photosynthetic organisms?
A
protists and plants
B
fungi and plants
C
fungi and protists
D
plants and animals
17) Which of the following characteristics is found only in organisms classified in the kingdom fungi?
A
single cells without a nucleus
B
multicellular with chloroplasts
C
colonies of single, photosynthetic cells that reproduce asexually
D
multicellular filaments that absorb nutrients
18) The domain that contains unicellular organisms that live in extreme environments is
A
Eukarya.
B
Eubacteria
C
Archaea
D
Bacteria.
19) The two domains composed of only unicellular organisms are
A
Eubacteria and Archaea.
B
Archaea and Bacteria.
C
Archaea and Eukarya.
D
Eukarya and Bacteria.
20) What is thought to be true about the three domains of living things?
A
Domains Bacteria and Archaea evolved after the main groups of eukaryotes.
B
They diverged from a common ancestor before the evolution of the main groups of eukaryotes.
C
They diverged from a common ancestor fairly recently.
D
They did not have a common ancestor.
*select an answer for all questions
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