Question
                Ecology is the study of the interactions between which two parts of the ecosystem?
plants and animals
organisms and abiotic factors
bacteria and soil
biotic factors and organisms
            
            
        plants and animals
organisms and abiotic factors
bacteria and soil
biotic factors and organisms
Answers
                    Answer
            
    Ecology is the study of the interactions between which two parts of the ecosystem?
a. plants and animals
b. organisms and abiotic factors
c. bacteria and soil
d. biotic factors and organisms
    
a. plants and animals
b. organisms and abiotic factors
c. bacteria and soil
d. biotic factors and organisms
                    Answer
            
    The nonliving parts of an ecosystem are called _____ factors.
population
dead
abiotic
biotic
    
population
dead
abiotic
biotic
                    Answer
            
    A limiting factor _____.
is an influence that can limit a population’s size
impacts animals but not plants
affects all populations in an area similarly
is the same as the carrying capacity
    
is an influence that can limit a population’s size
impacts animals but not plants
affects all populations in an area similarly
is the same as the carrying capacity
                    Answer
            
    Counting the number of organisms in a small area and multiplying to estimate the number in a larger area is called _____.
direct observation
mark and recapture
indirect observation
sampling
    
direct observation
mark and recapture
indirect observation
sampling
                    Answer
            
    What is an approximation of a number, based on reasonable assumptions?
an estimate
a limiting factor
a biotic factor
immigration
    
an estimate
a limiting factor
a biotic factor
immigration
                    Answer
            
    What is the largest number (of a single species) a specific area can support?
population
unlimited factor
carrying capacity
niche
    
population
unlimited factor
carrying capacity
niche
                    Answer
            
    Counting the number of hoofprints around a water hole to determine the size of a population of deer is an example of _____.
direct observation
indirect observation
sampling
mark and recapture
                    Answer
            
    What happens to the population size when the birthrate is greater than the death rate?
The population decreases slowly.
The population decreases rapidly.
The population increases.
The population stays the same.
    
The population decreases slowly.
The population decreases rapidly.
The population increases.
The population stays the same.
                    Answer
            
    Why does the population size stay close to the carrying capacity?
due to limiting factors
as a result of its niche
because of the growth rate
because of the death rate
    
due to limiting factors
as a result of its niche
because of the growth rate
because of the death rate
                    Answer
            
    The largest population that an environment can support is called its _____.
birth capacity
carrying capacity
death factor
limiting factor
    
birth capacity
carrying capacity
death factor
limiting factor
                    Answer
            
    How is the carrying capacity related to the limiting factors of a population?
The limiting factors determine the carrying capacity.
The carrying capacity determines the limiting factors.
The carrying capacity and limiting factors are the same thing.
The limiting factors are unrelated to the carrying capacity.
    
The limiting factors determine the carrying capacity.
The carrying capacity determines the limiting factors.
The carrying capacity and limiting factors are the same thing.
The limiting factors are unrelated to the carrying capacity.
                    Answer
            
    Which is true about a species?
They do not interact with members of other species.
They are found within the same ecosystem.
The members can mate with one another and produce fertile offspring.
The members are one of the abiotic factors in the ecosystem.
                    Answer
            
    In a rainforest, the plants are very crowded and compete for any available sunlight. Which of the following is a limiting factor in this situation?
water
space
soil
shade
                    Answer
            
    The living parts of an ecosystem are called _____ factors.
habitat
abiotic
biotic
vital
                    Answer
            
    If you count 20 beetles in a garden measuring 5 square meters, the population density of the beetles is _____ per square meter.
4 beetles
20 beetles
5 beetles
100 beetles
    
4 beetles
20 beetles
5 beetles
100 beetles
                    Answer
            
    . 
Which of the following keeps the size of a population of mice at or below its carrying capacity?
increasing birthrate
lack of sunlight
limiting factors
limited factors
    
Which of the following keeps the size of a population of mice at or below its carrying capacity?
increasing birthrate
lack of sunlight
limiting factors
limited factors
                    Answer
            
    What happens to a population when living conditions in an area are good?
The population will grow larger than the carrying capacity.
The density of the population will increase to the carrying capacity.
The population will grow in size until it reaches the carrying capacity.
The population will change the limiting factors that influence its growth.
                    Answer
            
    The smallest unit of ecological organization is a single _____.
population
ecosystem
community
organism
    
population
ecosystem
community
organism
                    Answer
            
    What can happen due to competition within a population?
decreased death rate
increased birthrate
variation in climate
fighting over food
    
decreased death rate
increased birthrate
variation in climate
fighting over food
                    Answer
            
    All of the members of a single species in one place is called _____.
a community
a population
an ecosystem
a family
                    Answer
            
    What forms an ecosystem?
all the living organisms in the area
the communities and the abiotic factors
a population and the abiotic factors
the species and the biotic factors
    
all the living organisms in the area
the communities and the abiotic factors
a population and the abiotic factors
the species and the biotic factors
                    Answer
            
    Which process requires carbon dioxide, sunlight, and water to produce food?
respiration
photosynthesis
decomposition
precipitation
    
respiration
photosynthesis
decomposition
precipitation
                    Answer
            
    The niche of an organism includes _____.
how and what an organism eats, how an organism reproduces, and how long an organism lives
how and what an organisms eats and how long the organism lives
how an organism reproduces and what eats an organism
how and what an organism eats, what eats an organism, and how an organism reproduces
    
how and what an organism eats, how an organism reproduces, and how long an organism lives
how and what an organisms eats and how long the organism lives
how an organism reproduces and what eats an organism
how and what an organism eats, what eats an organism, and how an organism reproduces
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    biotic factors and abiotic factors.
    
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    b. organisms and abiotic factors.
    
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    abiotic.
    
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    is an influence that can limit a population’s size.
    
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    sampling.
    
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    an estimate.
    
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    carrying capacity.
    
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    indirect observation.
    
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    The population increases.
    
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    due to limiting factors.
    
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    carrying capacity.
    
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    The limiting factors determine the carrying capacity.
    
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    The members can mate with one another and produce fertile offspring.
    
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    shade.
    
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    biotic.
    
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    4 beetles.
    
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    limiting factors.
    
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    The population will grow in size until it reaches the carrying capacity.
    
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    organism.
    
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    fighting over food.
    
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    a population.
    
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    the communities and the abiotic factors.
    
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    photosynthesis.
    
                    Answered by
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    how and what an organism eats, what eats an organism, and how an organism reproduces.
    
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