Bio 1442 Exam 3 Questions With Complete Solutions
. A stickleback fish will attack a fish model as long as the model
has red coloring. This is best described as
a. Sign stimulus
b. Cognition
c. Imprinting
d. Classical conditioning Correct Answers a. Sign stimulus
+, -, 0 are used to determine the results of interactions between
individuals of different species. Determine the interaction.
40. The mistletoe plant grows as a parasite on various tree
species. a. +/+
b. +/0
c. +/-
d. -/- Correct Answers c. +/-
+, -, 0 are used to determine the results of interactions between
individuals of different species. Determine the interaction.
41. Mycorrhizae are associated with the roots of various tree
species.
a. +/+
b. +/0
c. +/-
d. -/- Correct Answers a. +/+
10. Which type of ecosystem is most likely to be threatened by
the phenomenon of eutrophication?
a. Tundra
,b. Chaparral
c. Savanna
d. Wetland Correct Answers d. Wetland
11. Which term describes the uppermost layer (entire surface) of
a large body of water?
a. Intertidal zone
b. Benthic zone
c. Estuary
d. Photic zone Correct Answers d. Photic zone
12. The most plausible hypothesis to explain why terrestrial
species richness is often higher in trophic regions is that
a. Tropical communities are younger
b. Tropical regions generally have more available water and
higher levels of solar radiation
c. Higher temperatures cause more rapid speciation
d. Tropical regions have very high rates of immigration and very
low rates of extinction Correct Answers b. Tropical regions
generally have more available water and higher levels of solar
radiation
13. If a meteor impact or volcanic eruption injected a lot of dust
into the atmosphere and reduced
the sunlight reaching Earth's surface by 70 percent for one year,
which marine community would least likely be affected?
a. Benthic ocean
b. Coral reef
c. Intertidal zone
d. Estuary Correct Answers c. Intertidal zone
, 14. Which of the following best describes an abiotic component
of an ecosystem?
a. To a crocodile, the steepness of a river bank can influence
whether this is a good spot to
lay in
b. To a tree-dwelling lizard, the diameter of the branches in its
microhabitat can determine whether it is successfully be able to
move around, capture prey, and escape from predators.
c. The showshoe hare is the most important prey item in the diet
of the Canadian lynx.
d. The sea otter keeps he sea urchin population from overgrazing
the kelp forest. Correct Answers a. To a crocodile, the
steepness of a river bank can influence whether this is a good
spot to
lay in
15. Why is the climate drier on the leeward side of mountain
ranges that are subjected to prevailing
winds?
a. Deserts create dry conditions on the leeward side of mountain
ranges
b. The sun illuminates the leeward side of mountain ranges at a
more direct angle,
converting to which evaporates most of the water present.
c. Pushed by prevailing winds on the windward side, air is
forced to rise, cool, and condense and drop precipitation, leaving
drier air to descend the leeward side
d. Air masses pushed by prevailing winds are stopped by
mountain ranges and the moisture is stagnant air masses on the
leeward side. Correct Answers c. Pushed by prevailing winds
on the windward side, air is forced to rise, cool, and condense
. A stickleback fish will attack a fish model as long as the model
has red coloring. This is best described as
a. Sign stimulus
b. Cognition
c. Imprinting
d. Classical conditioning Correct Answers a. Sign stimulus
+, -, 0 are used to determine the results of interactions between
individuals of different species. Determine the interaction.
40. The mistletoe plant grows as a parasite on various tree
species. a. +/+
b. +/0
c. +/-
d. -/- Correct Answers c. +/-
+, -, 0 are used to determine the results of interactions between
individuals of different species. Determine the interaction.
41. Mycorrhizae are associated with the roots of various tree
species.
a. +/+
b. +/0
c. +/-
d. -/- Correct Answers a. +/+
10. Which type of ecosystem is most likely to be threatened by
the phenomenon of eutrophication?
a. Tundra
,b. Chaparral
c. Savanna
d. Wetland Correct Answers d. Wetland
11. Which term describes the uppermost layer (entire surface) of
a large body of water?
a. Intertidal zone
b. Benthic zone
c. Estuary
d. Photic zone Correct Answers d. Photic zone
12. The most plausible hypothesis to explain why terrestrial
species richness is often higher in trophic regions is that
a. Tropical communities are younger
b. Tropical regions generally have more available water and
higher levels of solar radiation
c. Higher temperatures cause more rapid speciation
d. Tropical regions have very high rates of immigration and very
low rates of extinction Correct Answers b. Tropical regions
generally have more available water and higher levels of solar
radiation
13. If a meteor impact or volcanic eruption injected a lot of dust
into the atmosphere and reduced
the sunlight reaching Earth's surface by 70 percent for one year,
which marine community would least likely be affected?
a. Benthic ocean
b. Coral reef
c. Intertidal zone
d. Estuary Correct Answers c. Intertidal zone
, 14. Which of the following best describes an abiotic component
of an ecosystem?
a. To a crocodile, the steepness of a river bank can influence
whether this is a good spot to
lay in
b. To a tree-dwelling lizard, the diameter of the branches in its
microhabitat can determine whether it is successfully be able to
move around, capture prey, and escape from predators.
c. The showshoe hare is the most important prey item in the diet
of the Canadian lynx.
d. The sea otter keeps he sea urchin population from overgrazing
the kelp forest. Correct Answers a. To a crocodile, the
steepness of a river bank can influence whether this is a good
spot to
lay in
15. Why is the climate drier on the leeward side of mountain
ranges that are subjected to prevailing
winds?
a. Deserts create dry conditions on the leeward side of mountain
ranges
b. The sun illuminates the leeward side of mountain ranges at a
more direct angle,
converting to which evaporates most of the water present.
c. Pushed by prevailing winds on the windward side, air is
forced to rise, cool, and condense and drop precipitation, leaving
drier air to descend the leeward side
d. Air masses pushed by prevailing winds are stopped by
mountain ranges and the moisture is stagnant air masses on the
leeward side. Correct Answers c. Pushed by prevailing winds
on the windward side, air is forced to rise, cool, and condense
