Modeling Matter & Energy in Ecosystem

Modeling Matter & Energy in Ecosystem

Multiple Choice

Each level in a food chain contains less energy than the one below it because some of the energy is__.

• lost as heat

• added to the system

• consumed by carnivores

• incorporated into biomass

Multiple Choice

Which description fits with the term biomass?

• the producer-to-consumer ratio in the ecosystem

• the mass of all living things on Earth

• the unused material excreted as waste in an ecosystem

• the mass of living and dead organisms in a given area

Multiple Choice

Which provides most of the energy in ecosystem?

• carnivores

• producers

• generalists

• keystone species

Multiple Choice

Which of these can be both primary and secondary consumers?

• herbivores

• carnivores

• detritivores

• omnivores

Multiple Choice

From which source do almost all producers obtain their energy?

• sunlight

• herbivores

• decaying matter

• hydrothermal pools

Multiple Choice

What does a pyramid of numbers display?

• a chain of feeding relationships

• a network of feeding relationships

• the amount of biomass in an ecosystem

• the number of organisms in an ecosystem

Multiple Choice

Leopard seals eat only meat. What are leopard seals?

• herbivores

• detritivores

• omnivores

• carnivores

Multiple Choice

When a giraffe eats leaves from a tree, it incorporates the leaves into its own____.

• niche

• biome

• biomass

• community

Multiple Choice

If an ecologist wanted to understand how an alligator gets along with other alligators, they would study the alligator at which scale?

• community

• population

• organism

• ecosystem

Multiple Choice

If an ecologist wanted to understand how an alligator relates to all the biotic and abiotic components in a given area, they would study the alligator at which scale?

• community

• population

• organism

• ecosystem

Multiple Choice

The biosphere is:

• all the land forms on Earth

• All the water forms on Earth

• All the atmospheric layers on Earth

• All the areas of Earth that supports life

Multiple Choice

Which of the following statements is NOT true regarding biomes?

• A major regional or global distribution of organisms adapted to live in a particular area

• biomes contain only one type of ecosystem

• the organisms in a biome are unique to that biome

• biomes can be categorized by the climate conditions and plan

Multiple Choice

Which of the following statements is NOT true regarding diversity?

• it is the measure of biomass in a given area

• It is a measure of the variety of species in a given area

• biodiversity depends on factors such as temperature and moisture

• the rainforest would have a greater biodiversity than the Sahara desert

Multiple Choice

Which of the following is a marine ecosystem?

• wetland

• lake

• estuary

• river

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A _____ eats dead matter.

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____ are levels of nourishment.

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A group of the same species that live in the same area is called a___.

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All life on Earth is part of the _____.

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Multiple groups of different organisms living in the same area is a ___.

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__is a measure of the number of different species found within a specific area.

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___ are lands that are saturated by surface water for at least part of the year.

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A ____ is a major regional or global distribution of organisms adapted to living in that particular environment.

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An_____ is all the biotic and abiotic components in a given area.

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A___ is a sequence that links species by their feeding relationships.

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An ____ occurs where freshwater and marine water mix together.

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A ___models the complex network of feeding relationships between trophic levels.

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____ return vital nutrients back into the environment for other organisms to use.