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EVR1001 exam 2 Questions with Detailed
Verified Answers
Question: A trophic cascade is the effect of ________ on ________.
Ans✅ ✅: top consumers; lower trophic levels
Question: Why do we classify lionfish populations near the eastern
United States as an invasive species? What suggests that these new
populations are not an expansion of the lionfish's natural range?
Ans✅ ✅: Lionfish are native to the tropical Pacific. There are no natural water
routes of warm water between the Pacific and Atlantic oceans.
Question: Based upon what we are learning about the lionfish diet,
what is most likely going to happen to Caribbean coral reefs invaded by
lionfish?
Ans✅ ✅: There will be fewer algae eating fish. More algae will grow over and
damage corals.
Question: What characteristics of lionfish contribute to their ability to
spread and become established in new areas?
Ans✅ ✅: A single lionfish female may produce up to 2 million eggs a year. The eggs
float for up to a month, spreading the lionfish populations.
Question: How did the fish biologists determine the diet of lionfish in
the regions where the lionfish have invaded?
Ans✅ ✅: Biologists examined the contents of the stomachs of lionfish caught in the
wild.
Question: Based upon what we are learning about invasive lionfish
populations in the Caribbean and along the Atlantic coast of the United
States, these lionfish populations __________.
, Page | 2
Ans✅ ✅: cannot be eliminated by any means currently known
Question: Desert and tundra both ________.
Ans✅ ✅: have relatively low precipitation
Question: Which of the following biomes features distinct wet and dry
seasons?
Ans✅ ✅: Tropical dry forest
Question: What kinds of organisms pollinate three-fourths of our crops?
Ans✅ ✅: Bees
Question: Which of the following is an example of resource partitioning?
Ans✅ ✅: Two species of birds forage together, with one eating insects on tree
trunks while the other eats insects in the outer branches.
Question: Many of the characteristics of the Serengeti ecosystem in
east Africa have been influenced by __________.
Ans✅ ✅: volcanic activity in the region
Question: Many of the world's great game herds are concentrated on
the east African plateau because of the __________.
Ans✅ ✅: abundant grasslands
Question: The growth of trees in the Serengeti ecosystem is
__________.
Ans✅ ✅: inhibited by the dense soil that resists the penetration of tree roots
Question: If volcanic activity ceased in the Serengeti ecosystem, we
would expect that over the next million years, __________.
Ans✅ ✅: All of the above listed choices are correct.
Question: What two types of relationships exhibit symbiosis?
, Page | 3
Ans✅ ✅: mutualism and parasitism
Question: How does predation differ from parasitism?
Ans✅ ✅: Parasites rarely kill their host, while predators kill their prey.
Question: Which of the following is an example of an ecological
community?
Ans✅ ✅: all of the bears, wolves, elk, moose, aspen trees, lodgepole pine trees, and
all other animals and plants in Yellowstone National Park
Question: Imagine a large state park near your home. Which of the
following are probably the most crucial and essential part of that park's
ecosystem?
Ans✅ ✅: insects
Question: Imagine a square meter of leafy forest soil underneath an
oak or maple tree. Which of the following is likely to exist within this
patch of soil?
Ans✅ ✅: All of the listed responses would be expected to occur within this patch of
soil.
Question: After examining every single cell in your body, you would
conclude that humans are made up mostly of __________.
Ans✅ ✅: bacterial cells
Question: Which of the following are probably the most abundant but
least understood of all forms of life on Earth?
Ans✅ ✅: bacteria
Question: List the climates you would encounter if you were to walk in a
straight line starting from the middle of northern Sudan and then moving
directly south until you reached the ocean.
, Page | 4
Ans✅ ✅: Tropical and subtropical desert→tropical and subtropical steppe→tropical
savanna→tropical wet→complex mountain→marine west coast, with dry
season→marine west coast, without dry season
Question: Which of the following climates is LEAST prevalent in this
region?
Ans✅ ✅: marine west coast, without dry season
Question: If you were traveling to the island of Mauritius, which climate
would you need to be most prepared for? Use the buttons to zoom in and
out as necessary.
Ans✅ ✅: tropical wet
Question: Select Natural Regions under Physical Environment. Most of
sub-Saharan Africa could be described as __________.
Ans✅ ✅: savana
Question: The tropical monsoon climate consists mostly of
__________.
Ans✅ ✅: tropical rain forest
Question: Which of the following is/are an abiotic factor?
Ans✅ ✅: temperature
Question: Which type of feedback loop acts to resist change in natural
systems, thereby enhancing system stability and promoting conditions
favorable for life?
Ans✅ ✅: Negative feedback
Question: A climax community always ________.
Ans✅ ✅: remains in place until a disturbance restarts succession
Question: Read the following scenario and answer the question(s)
below.
EVR1001 exam 2 Questions with Detailed
Verified Answers
Question: A trophic cascade is the effect of ________ on ________.
Ans✅ ✅: top consumers; lower trophic levels
Question: Why do we classify lionfish populations near the eastern
United States as an invasive species? What suggests that these new
populations are not an expansion of the lionfish's natural range?
Ans✅ ✅: Lionfish are native to the tropical Pacific. There are no natural water
routes of warm water between the Pacific and Atlantic oceans.
Question: Based upon what we are learning about the lionfish diet,
what is most likely going to happen to Caribbean coral reefs invaded by
lionfish?
Ans✅ ✅: There will be fewer algae eating fish. More algae will grow over and
damage corals.
Question: What characteristics of lionfish contribute to their ability to
spread and become established in new areas?
Ans✅ ✅: A single lionfish female may produce up to 2 million eggs a year. The eggs
float for up to a month, spreading the lionfish populations.
Question: How did the fish biologists determine the diet of lionfish in
the regions where the lionfish have invaded?
Ans✅ ✅: Biologists examined the contents of the stomachs of lionfish caught in the
wild.
Question: Based upon what we are learning about invasive lionfish
populations in the Caribbean and along the Atlantic coast of the United
States, these lionfish populations __________.
, Page | 2
Ans✅ ✅: cannot be eliminated by any means currently known
Question: Desert and tundra both ________.
Ans✅ ✅: have relatively low precipitation
Question: Which of the following biomes features distinct wet and dry
seasons?
Ans✅ ✅: Tropical dry forest
Question: What kinds of organisms pollinate three-fourths of our crops?
Ans✅ ✅: Bees
Question: Which of the following is an example of resource partitioning?
Ans✅ ✅: Two species of birds forage together, with one eating insects on tree
trunks while the other eats insects in the outer branches.
Question: Many of the characteristics of the Serengeti ecosystem in
east Africa have been influenced by __________.
Ans✅ ✅: volcanic activity in the region
Question: Many of the world's great game herds are concentrated on
the east African plateau because of the __________.
Ans✅ ✅: abundant grasslands
Question: The growth of trees in the Serengeti ecosystem is
__________.
Ans✅ ✅: inhibited by the dense soil that resists the penetration of tree roots
Question: If volcanic activity ceased in the Serengeti ecosystem, we
would expect that over the next million years, __________.
Ans✅ ✅: All of the above listed choices are correct.
Question: What two types of relationships exhibit symbiosis?
, Page | 3
Ans✅ ✅: mutualism and parasitism
Question: How does predation differ from parasitism?
Ans✅ ✅: Parasites rarely kill their host, while predators kill their prey.
Question: Which of the following is an example of an ecological
community?
Ans✅ ✅: all of the bears, wolves, elk, moose, aspen trees, lodgepole pine trees, and
all other animals and plants in Yellowstone National Park
Question: Imagine a large state park near your home. Which of the
following are probably the most crucial and essential part of that park's
ecosystem?
Ans✅ ✅: insects
Question: Imagine a square meter of leafy forest soil underneath an
oak or maple tree. Which of the following is likely to exist within this
patch of soil?
Ans✅ ✅: All of the listed responses would be expected to occur within this patch of
soil.
Question: After examining every single cell in your body, you would
conclude that humans are made up mostly of __________.
Ans✅ ✅: bacterial cells
Question: Which of the following are probably the most abundant but
least understood of all forms of life on Earth?
Ans✅ ✅: bacteria
Question: List the climates you would encounter if you were to walk in a
straight line starting from the middle of northern Sudan and then moving
directly south until you reached the ocean.
, Page | 4
Ans✅ ✅: Tropical and subtropical desert→tropical and subtropical steppe→tropical
savanna→tropical wet→complex mountain→marine west coast, with dry
season→marine west coast, without dry season
Question: Which of the following climates is LEAST prevalent in this
region?
Ans✅ ✅: marine west coast, without dry season
Question: If you were traveling to the island of Mauritius, which climate
would you need to be most prepared for? Use the buttons to zoom in and
out as necessary.
Ans✅ ✅: tropical wet
Question: Select Natural Regions under Physical Environment. Most of
sub-Saharan Africa could be described as __________.
Ans✅ ✅: savana
Question: The tropical monsoon climate consists mostly of
__________.
Ans✅ ✅: tropical rain forest
Question: Which of the following is/are an abiotic factor?
Ans✅ ✅: temperature
Question: Which type of feedback loop acts to resist change in natural
systems, thereby enhancing system stability and promoting conditions
favorable for life?
Ans✅ ✅: Negative feedback
Question: A climax community always ________.
Ans✅ ✅: remains in place until a disturbance restarts succession
Question: Read the following scenario and answer the question(s)
below.
