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WorksheetsFTCE Ch.7 Study Questions - Ecology
Total questions: 24
Worksheet time: 12mins
Which of the following is the smallest level of group organization in ecology?
biosphere
community
ecosystem
population
Which of the following aquatic biomes, known as the "nurseries of the sea", are located where freshwater streams empty into the ocean?
wetlands
coral reef
estuaries
littoral
Which of the following is considered the most ecologically productive terrestrial biome?
grasslands
chaparral
temperate deciduous forest
tropical rain forest
Which of the following is an example of an abiotic environmental factor that influences population size?
food availability
rate of precipitation
interspecific competition
resource partitioning
Which of the following terms refers to an organism's specific role in a habitat?
niche
population
resource
competition
Which of the following occurs when a population has reached the maximum size that an ecosystem can support, given its current resources?
limiting factors
carrying capacity
resource partitioning
ecosystem maximum
Which of the following scenarios is an example of exponential growth?
bacteria cells rapidly reproducing then leveling off when their numbers have reached carrying capacity
houseflies steadily reproducing, then experiencing a sudden drop in numbers due to an environmental change
yeast cells undergoing mitosis and doubling their numbers with every division
mayfly populations steadily decreasing due to increased pollution in their habitat
Which of the following describes an ecological advantage of asexual reproduction over sexual reproduction?
there is greater genetic variation
parental investment is higher
offspring can be produced rapidly
species tend to have a much longer life span
Which of the following statements is true about parental investment?
parental investment is only seen among opportunistic species
parental investment is only seen among constant loss species
the amount of parental investment is directly proportional to the number of offspring produced by a parent
the amount of parental investment is inversely proportional to the number to the number of offspring produced by a parent
A barnacle is attached to the outside of the whale to collect and consume particulate matter as the whale moves through the ocean. The barnacle benefits, while the whale is unaffected. This is an example of which of the following types of symbiosis?
predation
commensalism
mutualism
parasitism
Which of the following is NOT an example of territorial behavior?
aiding injured members of a population
projecting songs and calls
marking a territory with scent
baring teeth as a display of intimidation
Which of the following describes the relationship in which one organism captures and feeds upon another?
territoriality
commensalism
predation
competition
Which of the following is NOT a difference between primary and secondary succession?
primary succession occurs where no life has existed before; secondary succession exists where life has previously existed
primary succession is characterized by soil with little to no nutrients; secondary succession has soil that is more nutrient rich
primary succession begins on newly formed or exposed surfaces; secondary succession begins on land that has existed for a period of time
primary succession begins with pioneer species; secondary succession begins with intermediate species
Grasses and shrubs begin to appear in which of the following stages of ecological succession?
intermediate species
secondary succession
climax community
pioneer plants
Which of the following groups of organisms constitutes the third trophic level?
tertiary consumers
secondary consumers
decomposers
primary consumers
Which of the following are organisms that generate their own food through photosynthesis and make up the first level of the energy pyramid?
heterotrophs
autotrophs
producers
consumers
Carbon dioxide makes up which of the following percentages of the atmosphere?
0.04
0.001
78
96.5
Which of the following biogeochemical cycles is an example of a sedimentary cycle?
water
phosphorous
carbon
nitrogen
Which of the following is an example of a biological disturbance to a habitat?
earthquake
flood
fire
disease
Which of the following occurs when disturbances break up continuous habitats into smaller, isolated patches of habitat?
adaptation
speciation
succession
fragmentation
Which of the following is NOT an example of a greenhouse gas?
methane
carbon dioxide
oxygen
chlorofluorocarbon
Which of the following terms refers specifically to the process of removing contaminants from the air, water, and soil?
reclamation
remediation
restoration
recalibration
Which of the following describes the movement of an organism out of its natural habitat?
emigration
immigration
transport
exchange
Where is the natural flow of materials between ecosystems most likely to occur?
between freshwater and saltwater environments
in well-defined habitats
at spawning grounds for animal species
among ecosystems close in proximity and in structure
