ASU BIO 182 CORE EXAMS 2026 SET QUESTIONS AND
ANSWERS SURE A+
✔✔Dan Janzen argued that tropical communities contain more species because
__________________________
a. tropical environments enable greater primary productivity, which supports larger
populations.
b. tropical environments enable greater primary productivity, which permits more
species to coexist.
c. tropical environments favor specialized niches, which limits gene flow and promotes
speciation.
d. tropical environments favor generalized niches, which permits more species to
coexist
e. centrifugal force from the Earth's rotation pushes most species to the equator. -
✔✔tropical environments favor specialized niches, which limits gene flow and promotes
speciation.
✔✔Tropical species are __________________________
a. least at risk from climate change because tropics are warming slowly.
b. most at risk from climate change because tropics are warming quickly.
c. least at risk from climate change because tropical species likely have broad niches.
d. most at risk from climate change because tropical species likely have narrow niches.
- ✔✔d. most at risk from climate change because tropical species likely have narrow
niches.
✔✔A team of researchers trapped butterflies at sites along a latitudinal gradient,
extending from 70° north (70° N) to 50° south (50° S). At each site, the team spent a
certain amount of time trapping and then recorded the number of species represented in
the sample. The figure below shows the number of species that were trapped at each
site along the latitudinal gradient
True or False:
1. Based on this figure, you can conclude that primary productivity is greatest between
0° and 10° N.
2. The majority of these species likely has narrow thermal niches (i.e., thermal
specialists).
3. Most of the species between 0° and 10° S are likely to also occur between 10° S and
20° S.
, 4. Species between 50° and 60° north are likely to have a broad thermal niche.
5. Species that occur between 0° and 20° south are likely to extend throughout a wide
range of altitudes. - ✔✔1. False
2. True
3. False
4. True
5. False
✔✔A population stops growing when it _____________________
a. reaches its carrying capacity.
b. doubles in size.
c. runs out of resources.
d. interacts with other populations. - ✔✔a. reaches its carrying capacity.
✔✔True or False? The carrying capacity of a population depends on the resources
available in the environment. - ✔✔true
✔✔True or False:
Carbon is found only in plants and animals. - ✔✔False
✔✔A juvenile bluegill was placed in a tank with two compartments, where one
compartment was warmer than the other. A researcher recorded the percentage of time
that the fish spent in each compartment. The test was repeated several times with
different water temperatures in each compartment. In this way, the researcher could
determine which temperatures the fish preferred and which temperatures the fish
considered too cold or too hot. The entire study was then repeated by placing two fish in
the tank: the juvenile and an adult. The figure below shows the results of these tests—
the small bluegill alone (top panels) and the small bluegill with an adult bluegill (bottom
panels).
True or false:
1. When possible, a bluegill prefers have a body temperature around 31°C.
2. When competing with an adult, a juvenile bluegill will always have a lower body
temperature than its preferred temperature.
3. All else being equal, t - ✔✔1. True when tested alone, a bluegill spent most of its time
at 31°C.
2. False If the environment hotter than preferred, on average, large bluegill will force
small bluegills to remain in parts of water that are hotter than preferred
3. True If bluegill are limited by access to suitable temperatures, the more space at the
preferred temperature, the more bluegills there can
ANSWERS SURE A+
✔✔Dan Janzen argued that tropical communities contain more species because
__________________________
a. tropical environments enable greater primary productivity, which supports larger
populations.
b. tropical environments enable greater primary productivity, which permits more
species to coexist.
c. tropical environments favor specialized niches, which limits gene flow and promotes
speciation.
d. tropical environments favor generalized niches, which permits more species to
coexist
e. centrifugal force from the Earth's rotation pushes most species to the equator. -
✔✔tropical environments favor specialized niches, which limits gene flow and promotes
speciation.
✔✔Tropical species are __________________________
a. least at risk from climate change because tropics are warming slowly.
b. most at risk from climate change because tropics are warming quickly.
c. least at risk from climate change because tropical species likely have broad niches.
d. most at risk from climate change because tropical species likely have narrow niches.
- ✔✔d. most at risk from climate change because tropical species likely have narrow
niches.
✔✔A team of researchers trapped butterflies at sites along a latitudinal gradient,
extending from 70° north (70° N) to 50° south (50° S). At each site, the team spent a
certain amount of time trapping and then recorded the number of species represented in
the sample. The figure below shows the number of species that were trapped at each
site along the latitudinal gradient
True or False:
1. Based on this figure, you can conclude that primary productivity is greatest between
0° and 10° N.
2. The majority of these species likely has narrow thermal niches (i.e., thermal
specialists).
3. Most of the species between 0° and 10° S are likely to also occur between 10° S and
20° S.
, 4. Species between 50° and 60° north are likely to have a broad thermal niche.
5. Species that occur between 0° and 20° south are likely to extend throughout a wide
range of altitudes. - ✔✔1. False
2. True
3. False
4. True
5. False
✔✔A population stops growing when it _____________________
a. reaches its carrying capacity.
b. doubles in size.
c. runs out of resources.
d. interacts with other populations. - ✔✔a. reaches its carrying capacity.
✔✔True or False? The carrying capacity of a population depends on the resources
available in the environment. - ✔✔true
✔✔True or False:
Carbon is found only in plants and animals. - ✔✔False
✔✔A juvenile bluegill was placed in a tank with two compartments, where one
compartment was warmer than the other. A researcher recorded the percentage of time
that the fish spent in each compartment. The test was repeated several times with
different water temperatures in each compartment. In this way, the researcher could
determine which temperatures the fish preferred and which temperatures the fish
considered too cold or too hot. The entire study was then repeated by placing two fish in
the tank: the juvenile and an adult. The figure below shows the results of these tests—
the small bluegill alone (top panels) and the small bluegill with an adult bluegill (bottom
panels).
True or false:
1. When possible, a bluegill prefers have a body temperature around 31°C.
2. When competing with an adult, a juvenile bluegill will always have a lower body
temperature than its preferred temperature.
3. All else being equal, t - ✔✔1. True when tested alone, a bluegill spent most of its time
at 31°C.
2. False If the environment hotter than preferred, on average, large bluegill will force
small bluegills to remain in parts of water that are hotter than preferred
3. True If bluegill are limited by access to suitable temperatures, the more space at the
preferred temperature, the more bluegills there can
