Worksheets4th clicker
Total questions: 17
Worksheet time: 9mins
Which of the following differences between prokaryotic cells and eukaryotic cells is not correct?
Prokaryotic cells lack a nucleus
Prokaryotic cells have small ribosomes
Prokaryotic cells have membrane-bound organelles
Prokaryotic cells have circular chromosomes
All of the above are correct
Protista is a valid kingdom containing organisms that are more related to each other than other groups of organisms
True
False
The study and reconstruction of evolutionary relationships is called
Speciation
Systematics
Evolution
Natural selection
The scientific name of an organism denotes the
Class and order
Family and genus
Kingdom and phylum
Genes and species
Class and family
A Monophyletic group
Consists of a common ancestor and some of its descendents
Does not contain the common ancestor of a group
s not an evolutionarily meaningful group
Consists of only extant living species
Contains a common ancestor and all of its descendants
Derived traits that are shared by all members of a clade are called
Symplesiomorphies
Ancestral
Synapomorphies
Homoplasies
Non-adaptive
Species that is related to the species being classified but is not included in the classification is
A common ancestor
An outgroup
A homoplasy
An infidel
A paraphyletic species
The principle of parsimony states that the hypothesis with the most assumptions is most likely the correct hypothesis
True
False
The direct exchange of genes between unrelated taxa is an example of vertical gene transfer
True
False
Which of the following complicates the construction of monophyletic groups?
Analogous structures
Incomplete fossil record
Convergent evolution
Neutral mutations
All of the above can cause problems
Birds evolved from dinosaurs and are classified as Aves but dinosaurs are classified as Reptilia. Using this model, is Reptilia a monophyletic group?
True
False
Vibrio cholerae is a bacterium that lives in water
and is normally harmless to humans. If infected by
a certain type of virus it acquires the genes to
produce the cholera toxin and now can cause
disease in humans. This acquisition of genes is an
example of
Vertical gene transfer
Independent evolution
Horizontal gene transfer
Induced mutation
Analogous gene transfer
In a phylogeny the most closely related species share
The fewest common ancestors
The most recent common ancestor
No common ancestors
Only distant common ancestors
Nothing
A trait that arose after the most recent common ancestor is a/n _______ trait
Ancestral
Outlying
Derived
Plesiomorphic
Atavistic
Traits that are shared by al members of a clade are called
Symplesiomorphies
Ancestral
Synapomorphies
Homoplasies
Non-adaptive
According to the _____ species concept, a species is a group of populations that is evolving independent from other groups
Biological
Allopatric
Phylogenetic
Atavistic
Descending
Complex structures like the flight-adapted wings
found in birds often arise as completely formed
structures as predicted by the punctuated
equilibrium model
True
False
