The traditional definition of a species does not work very well for asexual orga

Question

The traditional definition of a species does not work very well for asexual organisms because ____________________.
a) they do not have definable reproductive cycles
b) they generally do not arise as a result of interbreeding
c) most of them have not been able to be classified
d) they do not have genetic material

A cell's G + C ratio is associated with which of the following classification methods?
a) phage typing
b) serological tests
c) biochemical tests
d) physical characteristics
e) analysis of nucleic acids

Which of the following is NOT a characteristic of a genus name?
a) it is one of two names used to identify an organism.
b) it is usually an adjective.
c) it is always capitalized.
d) it is either underlined or in italics.
e) it is written before the specific epithet.

The oxic atmosphere created conditions that led to the evolution of various new metabolic pathways, such as
a) sulfate reduction.
b) nitrification.
c)iron oxidation.
d)all of the above.

A monophyletic group is a group that
a) descended from one ancestor.
b) has the same fitness level.
c) possesses one taxonomic trait that is the same.
d) shares one phylogenetic marker.

Which of the following groups of organisms does NOT belong in the Domain Eukarya?
a) archaea
b) protozoa
c) both bacteria and archaea
d) bacteria

Microorganisms likely did not inhabit Earth's surface until
a) aquatic life brought them onto land.
b) chemoorganotrophy developed.
c) phototrophy evolved.
d) the ozone layer was made.

Explanation / Answer

1)B 2)E 3)B 4)D 5)A 6)A 7)B

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