Ecosystem Review Question Preview (ID: 7372)


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

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

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

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

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

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

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

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

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

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

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