Campbell Biology Chapter 24 Test Preparation Exam 2024 100% Accurate!!
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Campbell Biology
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Campbell Biology
What is true of macroevolution?
A) It is the same as microevolution, but includes the origin of new species.
B) It is evolution above the species level.
C) It is defined as the evolution of microscopic organisms into organisms that can be seen with the naked eye.
D) It is defined as a change...
what is true of the flightless cormorants of the g
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Campbell Biology Chapter 24 Test
Preparation Exam 2024 100%
Accurate!!
What is true of macroevolution?
A) It is the same as microevolution, but includes the origin of new species.
B) It is evolution above the species level.
C) It is defined as the evolution of microscopic organisms into organisms that can be seen with the
naked eye.
D) It is defined as a change in allele or gene frequency over the course of many generations.
E) It is the conceptual link between irritability and adaptation. - ANSWER B) It is evolution above the
species level.
What is true of the flightless cormorants of the Galápagos Islands?
A) They are descendants of the same common ancestor that gave rise to the unique finches of these
islands.
B) They are close relatives of flightless cormorants from the Americas.
C) If they are still able to breed successfully with flying cormorants, it would probably be with North
American cormorants, rather than with South American cormorants.
D) Flightless cormorants on one island have restricted gene flow with those on other islands, which
could someday lead to a macroevolutionary event.
E) Their DNA has low levels of sequence homology with the DNA of flying American cormorants. -
ANSWER D) Flightless cormorants on one island have restricted gene flow with those on other
islands, which could someday lead to a macroevolutionary event.
Which of the following statements about species, as defined by the biological species concept, is
(are) correct?
I. Biological species are defined by reproductive isolation.
II. Biological species are the model used for grouping extinct forms of life.
III. The biological species is the largest unit of population in which successful interbreeding is
possible.
A) I and II
,B) I and III
C) II and III
D) I, II, and III - ANSWER B) I and III
Which of the various species concepts distinguishes two species based on the degree of genetic
exchange between their gene pools?
A) phylogenetic
B) ecological
C) biological
D) morphological - ANSWER C) biological
There is still some controversy among biologists about whether Neanderthals should be placed
within the same species as modern humans or into a separate species of their own. Most DNA
sequence data analyzed so far indicate that there was probably little or no gene flow between
Neanderthals and Homo sapiens. Which species concept is most applicable in this example?
A) phylogenetic
B) ecological
C) morphological
D) biological - ANSWER D) biological
You are confronted with a box of preserved grasshoppers of various species that are new to science
and have not been described. Your assignment is to separate them into species. There is no
accompanying information as to where or when they were collected. Which species concept will you
have to use?
A) biological
B) phylogenetic
C) ecological
D) morphological - ANSWER D) morphological
Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are
fertile. This kind of isolation is most similar to which of the following reproductive isolating
mechanisms?
Rank the following from most general to most specific:
1. gametic isolation
2. reproductive isolating mechanism
3. pollen-stigma incompatibility
4. prezygotic isolating mechanism
A) 2, 3, 1, 4
B) 2, 4, 1, 3
C) 4, 1, 2, 3
D) 4, 2, 1, 3
E) 2, 1, 4, 3 - ANSWER B) 2, 4, 1, 3
Dogs (Canis lupus familiaris) and gray wolves (Canis lupus) can interbreed to produce viable, fertile
offspring. These species shared a common ancestor recently (in geologic time) and have a high
degree of genetic similarity, although their anatomies vary widely. Judging from this evidence, which
two species concepts are most likely to place dogs and wolves together into a single species?
A) ecological and morphological
B) ecological and phylogenetic
C) morphological and phylogenetic
D) biological and morphological
E) biological and phylogenetic - ANSWER E) biological and phylogenetic
Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monosperma) have
overlapping ranges. If pollen grains (which contain sperm cells) from one species are unable to
germinate and make pollen tubes on female ovules (which contain egg cells) of the other species,
then which of these terms are applicable?
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