BIO 1407 EXAM REVIEW 1
QUESTIONS AND ANSWERS
Which of the following statements can be associated with the concept of the unity of life
and which can be associated with the concept of the diversity of life"? Note that both
concepts may apply to some statements. - Correct Answers -several homologous
structures
You find a section of sedimentary rock in which the strata and some fossils have been
exposed. You notice that a clam fossil is in deeper strata than a fish fossil. Using
relative dating, which fossil is most likely older? - Correct Answers -clam
You discover fish living in a cave with no natural light. The fish have no eyes, but they
do have eye sockets. Using a Lamarckian thought process, which of the following would
be the reason for this? - Correct Answers -The fish were in a dark environment and
therefore didn't need eyes. Over time, they used their developmental
energy for other more useful features, so because they didn't use their eyes, they lost
them.
You discover fish living in a cave with no natural light. The
fish have no eyes, but they do have eye sockets. Using a
Darwinian thought process, which of the following would be
the reason for this? - Correct Answers -Originally, all fish in the population had eyes and
could
see. However, in the dark, there was no longer selection
for sight, and eyes were eventually lost due to random
mutations.
Using the Galápagos finches example from the book, which
of the following best explains the Darwinian reason why the
insect eating finch has such a long, narrow beak? - Correct Answers -Variation existed
in the finch population. Those that
naturally had longer, narrower beaks could reach their
food more easily, allowing finches with these features to
survive and reproduce more often than those that did
not.
MRSA infections are occurring at alarming rates. One
reason for this could be that people do not finish their
, antibiotics. Which of the following is the most likely reason
that this could lead to something like MRSA? - Correct Answers -The first few days of
antibiotics kill off the susceptible
bacteria, making people feel better. Then, when people
stop taking the antibiotics, the resistant bacteria that
survived reproduce to create a more resistant
population.
Plants in "Mediterranean" ecosystems have similar
adaptations for surviving hot, dry summers and fire. Given
that these ecosystems are presently found in southern
Europe, California, Chile, South Africa, and southern
Australia, which of the following best explains the origin of
these adaptations? - Correct Answers -Although these plants likely do not share a
recent
common ancestor, they have been subjected to the same selective pressures.
A number of scientists influenced Darwin's thinking about
evolution. Which of the following scientists had proposed
that the geological processes of the past (e.g., rivers forming
valleys over time) were still in operation? - Correct Answers -Lyell
On Darwin's tour of South America, which of the following
facts became clear to him? - Correct Answers -a) The Earth must be very old.
b) Regardless of habitat, living South American organisms
resembled each other more than they did the organisms of England.
c) South American fossils resembled living South American organisms.
d) The Galápagos Islands were colonized from the continental mainland.
The Lamarckian and Darwinian views of evolution share all
of the following ideas except - Correct Answers -organisms have an innate drive to
become more
complex.
There are many categories of evidence that support
evolution by natural selection. Which type of evidence would
have been unfamiliar to Darwin during his life? - Correct Answers -DNA and genetics
Artificial selection (breeding) was a very important factor in
the development of Darwin's ideas on natural selection. In
which of the following respects is artificial selection distinct
from natural selection? - Correct Answers -Artificial selection does not rely exclusively
on the
environment to determine relative survival and
reproduction rates.
QUESTIONS AND ANSWERS
Which of the following statements can be associated with the concept of the unity of life
and which can be associated with the concept of the diversity of life"? Note that both
concepts may apply to some statements. - Correct Answers -several homologous
structures
You find a section of sedimentary rock in which the strata and some fossils have been
exposed. You notice that a clam fossil is in deeper strata than a fish fossil. Using
relative dating, which fossil is most likely older? - Correct Answers -clam
You discover fish living in a cave with no natural light. The fish have no eyes, but they
do have eye sockets. Using a Lamarckian thought process, which of the following would
be the reason for this? - Correct Answers -The fish were in a dark environment and
therefore didn't need eyes. Over time, they used their developmental
energy for other more useful features, so because they didn't use their eyes, they lost
them.
You discover fish living in a cave with no natural light. The
fish have no eyes, but they do have eye sockets. Using a
Darwinian thought process, which of the following would be
the reason for this? - Correct Answers -Originally, all fish in the population had eyes and
could
see. However, in the dark, there was no longer selection
for sight, and eyes were eventually lost due to random
mutations.
Using the Galápagos finches example from the book, which
of the following best explains the Darwinian reason why the
insect eating finch has such a long, narrow beak? - Correct Answers -Variation existed
in the finch population. Those that
naturally had longer, narrower beaks could reach their
food more easily, allowing finches with these features to
survive and reproduce more often than those that did
not.
MRSA infections are occurring at alarming rates. One
reason for this could be that people do not finish their
, antibiotics. Which of the following is the most likely reason
that this could lead to something like MRSA? - Correct Answers -The first few days of
antibiotics kill off the susceptible
bacteria, making people feel better. Then, when people
stop taking the antibiotics, the resistant bacteria that
survived reproduce to create a more resistant
population.
Plants in "Mediterranean" ecosystems have similar
adaptations for surviving hot, dry summers and fire. Given
that these ecosystems are presently found in southern
Europe, California, Chile, South Africa, and southern
Australia, which of the following best explains the origin of
these adaptations? - Correct Answers -Although these plants likely do not share a
recent
common ancestor, they have been subjected to the same selective pressures.
A number of scientists influenced Darwin's thinking about
evolution. Which of the following scientists had proposed
that the geological processes of the past (e.g., rivers forming
valleys over time) were still in operation? - Correct Answers -Lyell
On Darwin's tour of South America, which of the following
facts became clear to him? - Correct Answers -a) The Earth must be very old.
b) Regardless of habitat, living South American organisms
resembled each other more than they did the organisms of England.
c) South American fossils resembled living South American organisms.
d) The Galápagos Islands were colonized from the continental mainland.
The Lamarckian and Darwinian views of evolution share all
of the following ideas except - Correct Answers -organisms have an innate drive to
become more
complex.
There are many categories of evidence that support
evolution by natural selection. Which type of evidence would
have been unfamiliar to Darwin during his life? - Correct Answers -DNA and genetics
Artificial selection (breeding) was a very important factor in
the development of Darwin's ideas on natural selection. In
which of the following respects is artificial selection distinct
from natural selection? - Correct Answers -Artificial selection does not rely exclusively
on the
environment to determine relative survival and
reproduction rates.
