Systematics MCQ
The scientific name of an organism (critter) refers to it's _____________ and ____________.
Answer
Correct Answer:
Species; Genus
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In mammals, the presence of four limbs is ________, and hair is ________.
Answer
Correct Answer:
A shared ancestral character; a shared derived character unique to mammals
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If organisms are of the same species, _____.
Answer
Correct Answer:
All of the above
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According to the phylogenetic tree in the figure above, g. intestinalis constitutes a _____ group.
Answer
Correct Answer:
Paraphyletic
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Prokaryotic cells are found in the domain(s) _____.
Answer
Correct Answer:
Bacteria and Archaea
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An example of parallel choices in a key is _____.
Answer
Correct Answer:
Flower color is red; AA. flower color is blue
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A derived character that is shared among two or more lineages is also called a(n) ________.
Answer
Correct Answer:
Synapomorphy.
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A(n) _______ is one that is present in the common ancestor and all members of a group.
Answer
Correct Answer:
Ancestral character
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Molecular clocks are based on the idea that _____
Answer
Correct Answer:
Molecules resonate at a certain frequency that can be measured
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Taxonomy is the ______
Answer
Correct Answer:
Naming and classifying of species
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In the five-kingdom system, prokaryotes are placed in the kingdom _____.
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The best classification system is that which most closely _____.
Answer
Correct Answer:
Reflects evolutionary history
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To apply parsimony to constructing a phylogenetic tree, __________.
Answer
Correct Answer:
Choose the tree that represents the fewest evolutionary changes, either in DNA sequences or morphology.
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The language used in taxonomy is _____.
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Feathers are an example of a/an ________; they originally evolved ________
Answer
Correct Answer:
Exaptation . . . for some other function
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The legless condition that is observed in several groups of extant reptiles is the result of _____.
Answer
Correct Answer:
Several instances of the legless condition arising independently of each other.
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The process of protein synthesis (translation) does not include ________.
Answer
Correct Answer:
Translation
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Phylogenetic analysis of hiv and nonhuman siv demonstrates that hiv is _______ and siv is _______.
Answer
Correct Answer:
Polyphyletic; paraphyletic
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In a comparison of birds and mammals, having four limbs is _____.
Answer
Correct Answer:
A shared ancestral character
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Animals that possess homologous structures probably _____
Answer
Correct Answer:
Evolved from the same ancestor
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A human is classified in domain _____ and kingdom _____
Answer
Correct Answer:
Eukarya ... Animalia
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