Transcript ch 2 jeopardy

Organisms and
Their
Relationships
Flow of
Energy in an
Ecosystem
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
Cycling of
Actual Test
Vocabulary
Matter
Questions
The scientific discipline in which
the relationships among living
organisms and the interaction the
organisms have with their
environments are studied
Ecology
The portion of Earth that supports
life
Biosphere
The living factors in an
organism’s environment
Biotic
Individual organisms of a single
species that share the same
geographic location at the same
time
Population
A biological community and all
of the abiotic factors that affect it
Ecosystem
An organism that gets its energy
requirements by consuming other
organisms
Heterotroph
A heterotroph that eats only
plants
Herbivore
An organism that eats fragments
of dead matter in an ecosystem,
return nutrients to the soil, air and
water where nutrients can be
reused by organisms
Detritivore
A model representing the many
interconnected food chains
Food Web
A diagram that can show the
relative amounts of energy,
biomass, or numbers of
organisms at each trophic level in
an ecosystem
Ecological Pyramid
Anything that has mass or takes
up space
Matter
The process of capture and
conversion of nitrogen into a
form that is useable by plants
Nitrogen Fixation
The name of the cycle that affects
climate change
Carbon and Oxygen
A chemical substance that an
organism must obtain from its
environment to sustain life and
undergo life processes
Nutrient
The process of converting fixed
nitrogen compounds back into
nitrogen gas, which returns it to
the atmosphere
Denitrification
Organisms that eat both plants
and animals
Omnivores
A symbiotic relationship in
which one organism benefits at
the expense of another organism
Parasitism
Each step in a food chain or a
food web
Trophic Level
The act of one organism
consuming another organism for
food
Predation
A group of interacting
populations that occupy the same
geographic area at the same time
Biological Community
Organisms with overlapping
niches probably have which type
of relationship?
A. commensal
B. competitive
C. mutualistic
D. parasitic
B. competitive
Which organisms perform
cellular respiration?
A. Plants
B. Animals
C. Neither Plants nor Animals
D. Both Plants and Animals
D. Both Plants and Animals
To explain and show how the
amount of living material at each
trophic level of a food chain
changes, you could use a pyramid
of __________________
Biomass
Cougars and predators that often
eat weakened or diseased
animals. This is a description of
the ___________ of cougars.
A. habitat
B. community
C. Niche
D. none of these
C. Niche
How long are food chains?
A. four steps long
B. three steps long
C. it varies with day length
D. it varies with ecosystem
D. it varies with ecosystem