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Post-Test
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1
The binomial system of classification was developed by
A)Darwin.
B)Wallace.
C)Linnaeus.
D)Malthus.
2
It is estimated that up to ____ million different organisms exist in the world.
A)1
B)5
C)50
D)100
3
Which one of the following sequences shows the correct hierarchy of classification, going from the most inclusive to the least inclusive?
A)kingdom, phylum, order, class, family, genus, species
B)kingdom, phylum, class, order, family, genus, species
C)species, genus, family, class, order, phylum, kingdom
D)phylum, kingdom, genus, species, family, order, class
4
The biological species concept is widely employed for defining species in which of the following kingdoms?
A)Animal
B)Plant
C)Fungi
D)Protist
5
The reconstruction and study of evolutionary trees is called
A)classification
B)taxonomy.
C)systematics.
D)biological species concept.
6
At the present time, scientists have named approximately ____ species.
A)500,000
B)1,000,000
C)1,500,000
D)10,000,000
7
Which Kingdom inhabits some of the most extreme environments on Earth?
A)Archaea
B)Plantae
C)Animalia
D)Bacteria
8
A phylogenetic tree is a branching diagram that represents the phylogeny of a group of organisms.
A)True
B)False
9
The binomial system of classification names an organism by using a list of adjectives that describe the organism.
A)True
B)False
10
According to Ray's species definition, horses and donkeys are
A)members of the same species because they can produce viable offspring.
B)members of the same species because they are similar in appearance.
C)not members of the same species because their offspring are sterile.
D)not members of the same species because they are different sizes.
E)in the same species as mules.
11
Outcrossing is most common in kingdom
A)Eubacteria.
B)Protista.
C)Fungi.
D)Plantae.
E)Animalia.
12
___________ has/have provided evidence that the archaea are more closely related to the eukaryotes than to the bacteria.
A)Fossils
B)RNA sequencing
C)Cytochrome c comparison
D)Cladistics
E)Both 1 and 4
13
Arranging organisms into a multilevel system is called
A)classification.
B)nomenclature.
C)speciation.
D)paleontology.
E)ornithology.
14
In the name Escherichia coli, coli is the __________ name.
A)genus
B)specific epithet
C)family
D)common name
E)phylum
15
The difficulty with polynomial names was that they
A)were not descriptive enough.
B)were not consistent.
C)could only be applied to animals.
D)were confusing.
E)All of the above
16
Organisms that are members of the same class are also members of the same
A)species.
B)family.
C)genus.
D)phylum.
E)Both 2 and 4
17
While examining water samples that you collected at a local pond, you observe a unicellular organism that has a nucleus and organelles. That organism is most likely a member of the kingdom ________________.
A)Bacteria.
B)Protista.
C)Animalia.
D)Plantae.
E)Fungi.
18
One limitation of the biological species concept is that it
A)does not apply to asexually reproducing organisms.
B)is only applicable to plant species.
C)is only applicable to animal species.
D)is outdated.
E)All of the above
19
While conducting research in the rain forest you collect a number of beetles. Several of them have similar morphologies but different coloring. How could you determine if they are members of the same species?
A)By determining if they produce viable, fertile offspring
B)By determining if they live in the same niche
C)By determining if they eat the same foods
D)By further examination of their morphologies for significant differences
E)Both 1 and 4
20
Living organisms are grouped into three categories called kingdoms.
A)True
B)False







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