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