AP BIO PRACTICE EXAM 1
Which of the following best explains why
triploid bananas do not produce seeds? - ANSWERS-The production
of gametes is disrupted
because of unequal pairing of
homologous chromosomes during
meiosis
Which of the following best explains why the
polymerase from the species T. aquaticus is
often used for PCR ? - ANSWERS-T. aquaticus polymerase does not
denature
at high temperatures
A researcher is studying two different species.
Which of the following sets of observations
would best support the claim that the two
species have structural similarities as a result of
convergent evolution? - ANSWERS-Genetic similarity: low, Function
of structure: same, Form of structure: different
Based on the cladogram, which of the following
,are the traits shared between ferns and pines? - ANSWERS-Embryo
and xylem only
The researchers performed a chi-square analysis to test their
hypothesis. Assuming the researchers use a
significance level of 0.05, which of the following is closest to the
critical value the researchers should use in
the chi-square analysis? - ANSWERS-5.99
Which of the following best describes what
happened to the otter population between 1750
and 1850 ? - ANSWERS-The population lost genetic diversity as a
result of a bottleneck effect
Based on the information provided in the
passage, which of the following best describes
the effect of harmful algal blooms on otter
populations? - ANSWERS-They are a density-independent factor that
negatively affects the otter population
regardless of its size
As otters were removed during the hunting
years, there was a large decrease in the catches
of fish species from the eelgrass habitats. Which
of the following best explains why this decrease
, happened? - ANSWERS-Otters are a keystone species, so their
disappearance from the area resulted in
the collapse of an entire community
Climate change could affect the ecosystem of
the Elkhorn Slough in many ways. From the
information provided, which of the following
predictions about the direct, local effects of
climate change is most likely? - ANSWERS-Ocean warming will
favor population
growth of nonnative species as their
habitats shift northward
Based on the information, an increase in the sea
slug population would most likely be directly
related to which of the following? - ANSWERS-A decrease in the
crab population
Many fish species, such as fathead minnows,
release a pheromone when their skin cells are
damaged. Researchers placed pike, a predator of
fathead minnows, in a choice chamber and
released the minnow pheromone at one end of
the chamber. The researchers observed that the
Which of the following best explains why
triploid bananas do not produce seeds? - ANSWERS-The production
of gametes is disrupted
because of unequal pairing of
homologous chromosomes during
meiosis
Which of the following best explains why the
polymerase from the species T. aquaticus is
often used for PCR ? - ANSWERS-T. aquaticus polymerase does not
denature
at high temperatures
A researcher is studying two different species.
Which of the following sets of observations
would best support the claim that the two
species have structural similarities as a result of
convergent evolution? - ANSWERS-Genetic similarity: low, Function
of structure: same, Form of structure: different
Based on the cladogram, which of the following
,are the traits shared between ferns and pines? - ANSWERS-Embryo
and xylem only
The researchers performed a chi-square analysis to test their
hypothesis. Assuming the researchers use a
significance level of 0.05, which of the following is closest to the
critical value the researchers should use in
the chi-square analysis? - ANSWERS-5.99
Which of the following best describes what
happened to the otter population between 1750
and 1850 ? - ANSWERS-The population lost genetic diversity as a
result of a bottleneck effect
Based on the information provided in the
passage, which of the following best describes
the effect of harmful algal blooms on otter
populations? - ANSWERS-They are a density-independent factor that
negatively affects the otter population
regardless of its size
As otters were removed during the hunting
years, there was a large decrease in the catches
of fish species from the eelgrass habitats. Which
of the following best explains why this decrease
, happened? - ANSWERS-Otters are a keystone species, so their
disappearance from the area resulted in
the collapse of an entire community
Climate change could affect the ecosystem of
the Elkhorn Slough in many ways. From the
information provided, which of the following
predictions about the direct, local effects of
climate change is most likely? - ANSWERS-Ocean warming will
favor population
growth of nonnative species as their
habitats shift northward
Based on the information, an increase in the sea
slug population would most likely be directly
related to which of the following? - ANSWERS-A decrease in the
crab population
Many fish species, such as fathead minnows,
release a pheromone when their skin cells are
damaged. Researchers placed pike, a predator of
fathead minnows, in a choice chamber and
released the minnow pheromone at one end of
the chamber. The researchers observed that the
