BIOL 1442 Exam 3 Questions With Complete Solutions
A biome characterized by warm, fairly dry climate that primarily
contains grasses with scattered, isolated trees is a Correct
Answer savanna
A community ecologist would conduct Correct Answer
STUDY OF COMPETITION BETWEEN TWO DIFFERENT
SPECIES
A demographic pyramid with a broad base that quickly slopes
up to a narrow is likely to be Correct Answer developing
nation
A demographic pyramid with a narrow base indicates Correct
Answer POPULATION THAT IS (OR WILL SOON) IN
DECLINE
A dispersion pattern refers to Correct Answer spacing of
organism throughout a habitat
A foundation species is most likely to be Correct Answer
primary producer
A sudden natural catastrophe resulting in massive die-offs would
be categorized as a density-________ limiting factor. Correct
Answer INDEPENDENT
All living things need nitrogen. How does nitrogen enter the
living portion of an ecosystem? Correct Answer
ATMOSPHERIC N2 IS TAKEN BY SOIL BACTERIA
, An estimate of one per million species per year (E/MSY) is best
described as Correct Answer background extinction rate
Blue mussels take up almost all of the space available on rocks
in the intertidal zone. Sea stars prey upon blue mussels, making
room for other species to cling to rocks. Based on this scenario,
which statement is true? Correct Answer SEA STARS ARE
KEYSTONE SPECIES BECAUSE THEY EXHIBIT A
DISPROPORTIONATE INFLUENCE ON STRUCTURE OF
THE COMMUNITY RELATIVE TO THEIR ABUNDANCE
Competition between different species is most likely to occur
Correct Answer among members of the same trophic level
During exponential growth, a population always Correct
Answer grows at its maximum per capita rate
Ecosystem A contains more species than Ecosystem B.
Therefore, Ecosystem A has higher __?__ than Ecosystem B.
Correct Answer RICHNESS
BIODIVERSITY
Elevated carbon dioxide levels have been shown to contribute to
the greenhouse effect, resulting in an increase in mean global
temperature. Ecosystems where the largest warming has already
occurred include snow-covered northern coniferous forests,
tundra, and arctic sea ice habitats. Which statement best explains
how the elimination of ice-covered ecosystems affects the rise or
fall in global temperature? Correct Answer MORE
REFLECTIVE SURFACES OF ICE ARE REPLACED WITH
A biome characterized by warm, fairly dry climate that primarily
contains grasses with scattered, isolated trees is a Correct
Answer savanna
A community ecologist would conduct Correct Answer
STUDY OF COMPETITION BETWEEN TWO DIFFERENT
SPECIES
A demographic pyramid with a broad base that quickly slopes
up to a narrow is likely to be Correct Answer developing
nation
A demographic pyramid with a narrow base indicates Correct
Answer POPULATION THAT IS (OR WILL SOON) IN
DECLINE
A dispersion pattern refers to Correct Answer spacing of
organism throughout a habitat
A foundation species is most likely to be Correct Answer
primary producer
A sudden natural catastrophe resulting in massive die-offs would
be categorized as a density-________ limiting factor. Correct
Answer INDEPENDENT
All living things need nitrogen. How does nitrogen enter the
living portion of an ecosystem? Correct Answer
ATMOSPHERIC N2 IS TAKEN BY SOIL BACTERIA
, An estimate of one per million species per year (E/MSY) is best
described as Correct Answer background extinction rate
Blue mussels take up almost all of the space available on rocks
in the intertidal zone. Sea stars prey upon blue mussels, making
room for other species to cling to rocks. Based on this scenario,
which statement is true? Correct Answer SEA STARS ARE
KEYSTONE SPECIES BECAUSE THEY EXHIBIT A
DISPROPORTIONATE INFLUENCE ON STRUCTURE OF
THE COMMUNITY RELATIVE TO THEIR ABUNDANCE
Competition between different species is most likely to occur
Correct Answer among members of the same trophic level
During exponential growth, a population always Correct
Answer grows at its maximum per capita rate
Ecosystem A contains more species than Ecosystem B.
Therefore, Ecosystem A has higher __?__ than Ecosystem B.
Correct Answer RICHNESS
BIODIVERSITY
Elevated carbon dioxide levels have been shown to contribute to
the greenhouse effect, resulting in an increase in mean global
temperature. Ecosystems where the largest warming has already
occurred include snow-covered northern coniferous forests,
tundra, and arctic sea ice habitats. Which statement best explains
how the elimination of ice-covered ecosystems affects the rise or
fall in global temperature? Correct Answer MORE
REFLECTIVE SURFACES OF ICE ARE REPLACED WITH
