Created by Terri Street
Copyright, 2000
 1,000,000
 500,000
 250,000
 125,000

64,000

32,000

16,000

8,000

4,000

2,000

1,000

500

300

200

100
Click to return to
question, Cont-P to
switch to the pen, cross
out two incorrect
answers, then Cont-A to
switch back to pointer.
Click to return to the
question and poll the
class
Click on link to Ask
Jeeves, or click on this
oval to return to
question and ask a
friend
What molecules are the basic
building block of life?
 A. Carbon
 B. Nitrogen
 C. Oxygen
 D. Hydrogen
 A. Carbon
Back to
Board
What is the term for a group of different
species living in the same area?
 A. Population
 B. Organisms
 C. Community
 D. Ecosystem
C. Community
Back to
Board
What two factors make up an areas
climate?
 A. Rainfall and Sunlight
 B. Temperature and rainfall
 C. Temperature and soil
 D. Climate and rainfall
B. Temperature and Rainfall
Back to
Board
Which of the following lists are
examples of ABIOTIC factors?
 A. Sun, Soil, Water
 B. Sun, Soil, Fungus
 C. A deer, Tree, Rocks
 D. Fungus, Rocks, Soil
A. Sun, Soil, Water
Back to
Board
What would happen if a keystone species
were removed from their ecosystem?
 A. They would have
 B. It would have a great impact,
no great effect.
but the other species would adapt.
 C. Other populations
 D.It would have a great impact
would increase
and the rest of the species would suffer
.
D. It would have a great impact
and other species would suffer
Back to
Board
What is the difference between a
food chain and food web?
 A. There is no difference.
 C. Food chain consists of a single chain.
Food web is a complex feeding network.
 B. Food chain is a complex feeding network. Food web consists of single chain.
 D. One shows trophic levels
and the other does not.
C. Food chain consists of a single chain.
Food web is a complex feeding network.
Back to
Board
Why are decomposers important
for an ecosystem?
 A. They can be omnivores.
 B. They return nutrients
to the environment.
 C. They capture energy
from the sun.
 D. They are producers
B. They return nutrients
to the environment.
Back to
Board
The oxygen and carbon cycle are
similar in that
 A. They both use
fossil fuels
 B. They use nitrogen
fixation
 C. They directly depend
on photosynthesis
 D. They both take place
mostly under ground
C. They directly depend
on photosynthesis
Back to
Board
What are the two ways that water
enter the atmosphere?
 A. Condensation
and precipitation
 C. Precipitation
and evaporation
 B. Precipitation
and evaporation
 D. Evaporation
and transpiration
D. Transpiration and
evaporation
Back to
Board
What happens during the process
of nitrogen fixation?
 A. Bacteria absorb
ammonia
 B. Bacteria change gaseous
 C. Bacteria grow on plant
 D. Bacteria change
roots and in the soil
nitrogen to ammonia
ammonia to nitrate
B. Bacteria change gaseous
nitrogen to ammonia
Back to
Board
Each level in the food chain contains less
energy than one before because some energy
 A. is lost as heat
 B. is consumed
by carnivores
 C. is added to
the system
 D. incorporated
into biomass
A. is lost as heat
Back to
Board
What are the two processes used by autotrophs to
make their own sources of energy?
 A. Photosynthesis
and cellular respiration
 B. Photosynthesis
and chemosynthesis
 C. Respiration and
chemosynthesis
 D. Chloroplast
and mitochondria
B. Photosynthesis
and chemosynthesis
Back to
Board
What are the trophic levels shown in energy,
biomass, and number pyramids?
 A. Biome, ecosystem,
 B. photosynthesis
 C. Producer; primary,
 D. bacteria,
community, population
secondary, tertiary consumers
and chemosynthesis
fungus, consumers
C. . Producer; primary,
secondary, tertiary consumers
Back to
Board
Which illustration shows the total dry mass of
organisms in a given area?
 A. Pyramid of
numbers
 B. Energy pyramid
 C. Food web
 D. Biomass pyramid
D. Biomass pyramid
Back to
Board
What is the study of organisms and their
interactions with the environment?
 A. Ecology
 B. Biology
 C. Ecosystems
 D. Psychology
A. Ecology
Sorry, try again!
Thanks for playing!