Review by Lakshmi
CHAPTER 41
Which food chain correctly describes the flow of
energy in an ecosystem?
 A. grass-->cow-->human
 B. caterpillar-->leaf-->human
 C. cow-->grass-->human
 D. leaf-->bird-->caterpillar

Rabbits eat grass and other Plants to
survive, but they do not eat animals.
What kind of animal are rabbits?
A. decomposers
B. carnivores
C. producers
D. herbivores
How do decomposers help other organisms in
an ecosystem?
A. They are food for consumers.
B. Through photosynthesis they can make their
own food.
C. They return nutrients back to the soil.
D. They eat plants.
What will happen if the number of mouse decreased in this food chain?
What is the difference between food chain and food web?
In what order do a hawk, grass, and rabbit
form a food chain in a meadow?
A. hawk-->grass-->rabbit
B. grass-->hawk-->rabbit
C. rabbit-->grass-->hawk
D. grass-->rabbit-->hawk
Which of the following lists only consumers?
A. hawks, lizards, chipmunks
B. acorns, squirrels, rabbits
C. grass, chipmunks, eagles
D. mice, squirrels, grass
In this food web, is the
Bear a secondary consumer
Or tertiary consumer?
What is the only tertiary consumer in this food web according to the illustration?
An energy pyramid is used to show _________.
Athe layout of organisms in any order seen fit
.
Bthe amount of energy in the universe
.
Cthe amount of energy at each trophic level
.
Which number on the diagram below shows the location of the secondary consumers?
In an energy pyramid, which way does energy
transfer?
AFrom the top of the pyramid to the bottom
.
BFrom the bottom of the pyramid to the top
.
CNone of these
.
DBoth of these
.
Look at the following energy pyramid. If the producers have 7000 kcal of energy,
how much energy will be available for the Sheephead ?
Which level of this food pyramid represents the largest amount of organisms?
a) Producers, b) primary consumers, c) secondary consumers,
d) 3rd level consumers.
If birds eat insects that feed on corn, which pyramid level would birds
occupy?
How can you reduce acid rain?
A. Walk when you can
B. Conserve energy
C. Choice A and B
Which of the following is a greenhouse gas
that is released by human activities and
speeds up global warming?
a) Petroleum
b) Natural gas
c) Carbon dioxide
d) Nuclear power
Which of the following human activities does NOT release
carbon dioxide into the atmosphere?
a)
b)
c)
d)
Deforestation
Fishing
Burning fossil fuels
Driving
As global warming increases, the intensity of what type of storm
That hits coastlines is predicted to increase?
a)
b)
c)
d)
Tsunami
Cyclone
Earthquakes
tornadoes
Rising water temperature is a result of global warming and may
eventually result increase in sea levels due to the dissolving of what?
a)
b)
c)
d)
Mountains
Wetlands
Riverbeds
Glaciers
1.Draw a neat labeled diagram of a terrestrial chain showing all trophic levels
2. Draw a neat labeled diagram of a marine food chain.
3. Draw energy pyramid of prairie ecosystem
Which of the following is NOT a negative effect of global warming?
a)
b)
c)
d)
Larger fish population
New infectious diseases
Species extinction
Loss of coastal areas
What would happen if the number of mouse decreased in this food chain?
What is the difference between a food chain and a food web?
Which country emits most carbon dioxide?
a)Japan
b)United States
c)China
d)India
LABEL THE VARIOUS TROPHIC LEVELS
EFFECTS OF GLOBAL WARMING
Can you state the major effects
of global warming?
Global warming may kill
hibernating animals
As air pollution continues to be released into the atmosphere,
What becomes more depleted, resulting in an increase of
Ultraviolet radiation on earth?
a) Oceans
b) Rainforest
c) Ozone layer
d) Carbon dioxide
DETRITAL FEEDERS CONSUME
HERBIVORES
 PLANTS AND PLANT DEBRIS
 SECONDARY CONSUMERS AND PRIMARY
DEBRIS
 DEAD ORGANIC MATTER
 FUNGI AND BACTERIA

IN AN ENERGY PYRAMID, THE LOWEST LEVEL
HAS
Less energy than the top level
 Less energy than the second level
 More energy than the top level
 The same amount of energy as the second
level

To which group do the following belong to?
What would happen to the world without these organisms?
Can someone explain carbon cycle?
How humans have affected carbon cycle and what are the implications for future
Climate?
LEGUMINOUS PLANTS

How are the roots of these plants useful to
farmers? What role do they play in nitrogen
cycle?
Learn the key processes
In water cycle.
Acid rain - Cause
Which organism is most affected by the application of DDT? Explain
What is the impact of DDT on animals, humans?