Ecology Review Question Preview (ID: 2633)


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An organism that uses energy to produce its own food supply from inorganic compounds is called a(an)
a) heterotroph
b) consumer
c) detritivore
d) autotroph

The movements of energy and nutrients through living systems are different because?
a) energy flows in one direction and nutrient recycle
b) energy is limited in the biosphere and nutrients are always available
c) nutrients flow in one direction and energy recycles
d) energy forms chemical compounds and nutrients are lost as heat

what is the original source of almost all the energy in most ecosystems?
a) carbohydrates
b) sun
c) water
d) carbon

all the interconnected feeding relationships in an ecosystem make up a food
a) interaction
b) chain
c) network
d) web

green plants are
a) producers
b) consumers
c) herbivores
d) omnivores

large ecosystems with the same climate are
a) communities
b) biomes
c) populations
d) biosphere

the total amount of variety among living things is called
a) biomass
b) ecology
c) energy pyramid
d) biodiversity

which of the following descriptions about the organization of an ecosystem is correct?
a) communities make up species,which make up populations
b) populations make up species,which make up communities
c) species make up communities,which make up populations
d) species make up populations,which make up communities

only 10 percent of the energy stored in one organism can be passed on to another organism when its is eaten.the rest of the energy is
a) used in reproduction
b) stored as fat
c) stored as body tissue
d) eliminated as heat

which of the following organisms is the most important in the nitrogen cycle?
a) bacteria
b) lighting
c) plants
d) humans

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