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Frage 1
Frage
Which of the following increases the size of a population (check all that apply)
Antworten
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Emigration
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Immigration
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Mortality
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Natality
Frage 2
Frage
Which of the following decreases the size of a population (check all that apply)?
Antworten
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Emigration
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Immigration
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Mortality
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Natality
Frage 3
Frage
A volcano erupting causes the birds on an island to have to leave to find a new home. This would be an example of ___________?
Antworten
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Emigration
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Immigration
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Mortality
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Natality
Frage 4
Frage
If the rate of immigration and emigration of population are the same, what would cause the population to continue to increase in size?
Antworten
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If the mortality is greater than the natality
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If the natality is greater than the mortality
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If the mortality and natality are equal
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This population could not increase
Frage 5
Frage
In a lab experiment, doors that swing outward only allowed mice to enter a population but not to leave it. What could cause an increase in the population?
Antworten
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Emigration
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Immigration
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Mortality
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Natality
Frage 6
Frage
If a country had a higher death rate than a birth rate, what would explain a continued increase in population?
Antworten
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Emigration
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Immigration
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Mortality
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Natality
Frage 7
Frage
What factor usually is responsible for limiting the size of each population in the biosphere
Antworten
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The carrying capacity of the ecosystem
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The density of decomposers
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The increase in annual natality
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The opportunity to locate mates
Frage 8
Frage
The biotic component of an ecosystem would be __________
Antworten
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Climate
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Temperature
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Community
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Water
Frage 9
Frage
Abiotic factors include all of the following except:
Antworten
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Weather
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Food
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Space
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Water
Frage 10
Frage
Termites eat wood but cannot digest it. Microorganisms that live in the termites’ digestive tract digest the wood. The microorganisms cannot live outside the termites’ body. This is an example of:
Antworten
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Commensalism
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Competition
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Mutualism
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Parisitism
Frage 11
Frage
The cricket may live in a gopher burrow along with the gopher. Each animal is harmless to the other.
Antworten
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Commensalism
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Competition
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Mutualism
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Parisitism
Frage 12
Frage
A lamprey eel attaches itself by a sucker to a fish and feeds on blood from a fish.
Antworten
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Commensalism
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Competition
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Mutualism
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Parisitism
Frage 13
Frage
Garden seeds that sprout only inches apart cause the plants to be crowded and their growth and fruiting reduce.
Antworten
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Commensalism
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Competition
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Mutualism
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Parisitism
Frage 14
Frage
Barnacles attach themselves to a whale. The barnacles benefit but the whale is unharmed.
Antworten
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Commensalism
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Competition
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Mutualism
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Parisitism
Frage 15
Frage
Tapeworms live in animal intestines and grow new segments as they absorb digested foods. An animal may become undernourished as tapeworm segments are lost with eliminated wastes and the tapeworm grows more new segments
Antworten
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Commensalism
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Competition
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Mutualism
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Parisitism
Frage 16
Frage
What constitutes a famine?
Antworten
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Individuals consume more calories than their bodies use.
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The number of people in an area increases at a faster rate than food supplies.
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People consume enough calories but fail to take the necessary vitamins.
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Water quality is so poor that life threatening diseases are common.
Frage 17
Frage
What constitutes malnutrition?
Antworten
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Individuals consume more calories than their bodies use.
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The number of people in an area increases at a faster rate than food supplies.
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People consume enough calories but fail to take the necessary vitamins.
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Water quality is so poor that life threatening diseases are common.
Frage 18
Frage
Through which pathway would the most energy be available to humans?
Antworten
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Pathway I
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Pathway II
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Pathway III
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They are all the same
Frage 19
Frage
Through which pathway would the least energy be available to humans?
Antworten
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Pathway I
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Pathway II
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Pathway III
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They all have the same amount of energy available to humans
Frage 20
Frage
Which organisms are producers?
Antworten
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All of the following
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Grasses and trees
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Bacteria and mushrooms
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Mice, rabbits, and deer
Frage 21
Frage
Which organisms can be considered consumers?
Antworten
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All of the following
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Bacteria and Fungi
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Grasses and Clovers
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Insects, mice and rabbits
Frage 22
Frage
Which organisms convert light energy to chemical energy via photosynthesis?
Antworten
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All of the following
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Bacteria and fungi
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Grasses and Clovers
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Insects, mice and rabbits
Frage 23
Frage
Gross primary productivity in an ecosystem is the:
Antworten
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Energy lost by daily activity of producers in the community
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Food energy available to consumers
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Growth of the community
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Sunlight energy converted by producers to chemical energy
Frage 24
Frage
Net primary productivity in an ecosystem is defined as:
Antworten
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Energy lost by daily activity of producers in the community
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Food energy available to consumers
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Growth of the community
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Light energy converted by producers to chemical energy
Frage 25
Frage
A cow eats only grass making it a(n)
Antworten
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Herbivore
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Carnivore
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Omnivore
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Scavenger
Frage 26
Frage
A vulture eats a dead animal which makes it a(n)
Antworten
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Herbivore
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Carnivore
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Omnivore
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Scavenger
Frage 27
Frage
A bear eats both meat and berries, making it a(n)
Antworten
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Herbivore
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Carnivore
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Omnivore
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Scavenger
Frage 28
Frage
A shark has a diet that consists of only fish
Antworten
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Herbivore
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Carnivore
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Omnivore
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Scavenger
Frage 29
Frage
A butterfly migrates to a new area by flying
Antworten
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Active Dispersal
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Passive Dispersal
Frage 30
Frage
A river moves seeds to an new location
Antworten
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Active Dispersal
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Passive Dispersal
Frage 31
Frage
A monkey moves the seed of a mango tree to a new location
Antworten
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Active Dispersal
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Passive Dispersal
Frage 32
Frage
The difference between the ecosystem and its community of organisms is the:
Antworten
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Decomposers of the ecosystem
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Food web of the ecosystem
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Physical environment of the ecosystem
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Producers of the ecosystem
Frage 33
Frage
Which of these is a community relationship?
Antworten
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River turtles and snails eat tape grass
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Turtle eggs are buried on the river bank
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Tape grass clogs the water current in a river
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Snails are concealed among rocks in a river
Frage 34
Frage
Which organisms lose heat energy in respiration?
Antworten
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All of the above
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Bacteria and fungi
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Grasses and clover
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Insects, mice and rabbits
Frage 35
Frage
An herbivore is also called a:
Antworten
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Decomposer
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Green plant
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First-order consumer
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Second-order consumer
Frage 36
Frage
The food relationships diagrammed do not include the ecosystem’s;
Antworten
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Consumers
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Decomposers
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Predators
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Producers
Frage 37
Frage
If the snake population declines, one result probably will be:
Antworten
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Competition between spiders and salamanders
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Decrease in centipede density
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Emigration of the salamanders
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Increase in salamander density
Frage 38
Frage
A pyramid of biomass means that the mass of:
Antworten
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Consumers is greater than producers
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Decomposers is greater than consumers
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Decomposers is greater than producers
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Producers is greater than consumers
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