Populations, Communities and Ecosystems

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Which of the following increases the size of a population (check all that apply)

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Which of the following decreases the size of a population (check all that apply)?

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A volcano erupting causes the birds on an island to have to leave to find a new home. This would be an example of ___________?

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If the rate of immigration and emigration of population are the same, what would cause the population to continue to increase in size?

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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?

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If a country had a higher death rate than a birth rate, what would explain a continued increase in population?

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What factor usually is responsible for limiting the size of each population in the biosphere

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The biotic component of an ecosystem would be __________

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Abiotic factors include all of the following except:

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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:

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The cricket may live in a gopher burrow along with the gopher. Each animal is harmless to the other.

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A lamprey eel attaches itself by a sucker to a fish and feeds on blood from a fish.

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Garden seeds that sprout only inches apart cause the plants to be crowded and their growth and fruiting reduce.

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Barnacles attach themselves to a whale. The barnacles benefit but the whale is unharmed.

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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

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What constitutes a famine?

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What constitutes malnutrition?

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Through which pathway would the most energy be available to humans?

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Through which pathway would the least energy be available to humans?

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Which organisms are producers?

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Which organisms can be considered consumers?

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Which organisms convert light energy to chemical energy via photosynthesis?

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Gross primary productivity in an ecosystem is the:

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Net primary productivity in an ecosystem is defined as:

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A cow eats only grass making it a(n)

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A vulture eats a dead animal which makes it a(n)

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A bear eats both meat and berries, making it a(n)

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A shark has a diet that consists of only fish

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A butterfly migrates to a new area by flying

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A river moves seeds to an new location

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A monkey moves the seed of a mango tree to a new location

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The difference between the ecosystem and its community of organisms is the:

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Which of these is a community relationship?

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Which organisms lose heat energy in respiration?

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An herbivore is also called a:

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The food relationships diagrammed do not include the ecosystem’s;

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If the snake population declines, one result probably will be:

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A pyramid of biomass means that the mass of:

10 Biology Quiz on Populations, Communities and Ecosystems, created by J Will on 01/05/2016.

Populations, Communities and Ecosystems

Populations, Communities and Ecosystems

Which of the following increases the size of a population (check all that apply)

Which of the following decreases the size of a population (check all that apply)?

A volcano erupting causes the birds on an island to have to leave to find a new home. This would be an example of ___________?

If the rate of immigration and emigration of population are the same, what would cause the population to continue to increase in size?

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?

If a country had a higher death rate than a birth rate, what would explain a continued increase in population?

What factor usually is responsible for limiting the size of each population in the biosphere

The biotic component of an ecosystem would be __________

Abiotic factors include all of the following except:

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:

The cricket may live in a gopher burrow along with the gopher. Each animal is harmless to the other.

A lamprey eel attaches itself by a sucker to a fish and feeds on blood from a fish.

Garden seeds that sprout only inches apart cause the plants to be crowded and their growth and fruiting reduce.

Barnacles attach themselves to a whale. The barnacles benefit but the whale is unharmed.

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

What constitutes a famine?

What constitutes malnutrition?

Through which pathway would the most energy be available to humans?

Through which pathway would the least energy be available to humans?