Ecosystem Review Question Preview (ID: 7372)


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Organisms at higher trophic levels have _________ toxins as compared to lower trophic levels.
a) higher
b) lower
c) equal
d) none of the above

A consumer that eats both producers and other consumers is called a:
a) producer
b) herbivore
c) carnivore
d) omnivore

When organisms interact and both benefit from the interaction, what term is used to describe this interaction?
a) mutualism
b) commensalism
c) parasitism
d) ecological pyramid

As the trophic (feeding) levels of a food chain increase, the energy available...
a) increases
b) stays the same
c) decreases
d) biomagnifies

Producers and consumers both use this process to obtain energy:
a) photosynthesis
b) cellular respiration
c) water cycle
d) carbon cycle

The products of photosynthesis are
a) carbon dioxide and water
b) glucose and water
c) carbon dioxide and oxygen
d) glucose and oxygen

A large area with similar climate, plant, and animal life is called a:
a) population
b) ecology
c) biosphere
d) biome

Biotic and abiotic factors together make up a(n)
a) ecosystem
b) individual species
c) community
d) population

What term refers to all life on Earth and where life exists on Earth?
a) biotic factor
b) species
c) biomagnification
d) biosphere

Human population on Earth is currently at...
a) 80 billion
b) 8 billion
c) 88 million
d) 8

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