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Q.1
Which of the following leads to a decrease in biodiversity?
protection of ecosystems
pollution control
selective cutting
introduction of exotic or invasive species
Q.2
A carbon "sink" is best described as:
a reservoir that readily releases carbon to another reservoir
a carbon reservoir that stores more carbon that it is releasing
something that causes carbon to leak out to the atmosphere
a carbon reservoir that is releasing more carbon than it is taking in
Q.3
Nitrogen fixation processes nitrogen from which of the following sources?
lightning
fertilizers
dead plants
atmosphere
Q.4
Organisms that relies on other organisms for food; consumer
herbivore
decomposer
heterotroph
species
Q.5
All the organisms in a particular location, including their nonliving environment
ecosystem
carnivore
niche
population
Q.6
What does fungi do to dead plants and animals?
Leave them there
Decompose them
Wait for other animals to eat them
Move away
Q.7
Series of steps in which organisms transfer energy by eating and being eaten
foodweb
consumer
food chain
omnivore
Q.8
Consumer that eats plants
heterotroph
herbivore
producer
community
Q.9
Members of a species in a defined area
Ecosystem
community
biodiversity
population
Q.10
The energy at each trophic level in the pryamid of energy decreases by a factor of ____.
10
1
100
2
0 h : 0 m : 1 s
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