WorksheetsMatter & Energy Flow
Total questions: 39
Worksheet time: 54mins
Name
Class
Date
1.
Which of the following types of organisms would benefit most directly from the products of decomposer organisms?
a)
Decomposers
b)
Primary consumers
c)
Secondary consumers
d)
Producers
2.
Which of these best explains why predators need plants, such as grass, in their ecosystem?
a)
Plants are a large part of their diets
b)
Plants provide safety for predators
c)
Plants break down the organisms that the predators eat
d)
Plants provide food for their animals that the predators eat
3.
What is indicated by the diagram?
a)
Food web
b)
Food chain
c)
Food map
d)
Food menu
4.
What do the arrows indicate in a food web?
a)
What eats what
b)
Where the energy is being transferred
c)
How the animals are related
5.
Suppose that a llama is hit by a truck and dies. Where will most of the biological matter in the llama go next?
a)
To top level predatory animals
b)
To the soil to be used by plants
c)
To first order consumers that might eat the llama
d)
To microorganisms that decompose and recycle matter
6.
An organism that eats both plants and animals are know as a
a)
Carnivore
b)
Omnivore
c)
Herbivore
d)
Decomposer
7.
Autotrophs are organisms that produce their own food. Which do scientist classify as autotrophs?
a)
Chordates
b)
Fungi
c)
Plants
d)
Molds
8.
What is the first source of energy for all food webs?
a)
Plants
b)
Sunlight
c)
Mineral in the soil
d)
Decomposers
9.
Which ocean organism is considered a producer?
a)
Phytoplankton
b)
Zooplankton
c)
Small fish
d)
Whales
10.
All living things are made of _______, and all living things need _______.
a)
matter, plants
b)
energy, matter
c)
matter, energy
11.
Matter can by _____________ over and over again, and energy is needed for recycling matter. ___________ is not recycled, but it is converted from one form to another.
a)
destroyed, matter
b)
recycled, energy
c)
destroyed, energy
12.
During ____________, _____________ convert light energy into the chemical energy in sugar molecules.
a)
chemosynthesis, consumers
b)
chemosynthesis, producers
c)
photosynthesis, producers
13.
Some sugar molecules are broken down as _________ for the plant. Other sugar molecules as used as part of other molecules that become part of the plant's ________.
a)
matter, leaves
b)
energy, leaves
c)
energy, body
14.
How can energy be transferred from one organism to another?
a)
The energy stored in the molecules of one organism is transferred to another organism.
b)
The matter stored in the molecules of one organism is transferred to another organism.
c)
The photosynthesis stored in the molecules of one organism is transferred to another organism.
15.
Organisms use energy to heal and repair themselves and grow or to stay warm. Organisms take food to release its energy and use it for ____________ and ___________ or transform it into _________.
a)
maintenance, growth, heat
b)
photosynthesis, chemosynthesis, producers
c)
chemosynthesis, photosynthesis, heat
16.
What is a food chain?
a)
A chain that shows how heat passes from organism to organism.
b)
A way of showing how matter and energy pass from one organism to another.
c)
A representation of all the predator-prey relationships in a community.
17.
What's a food web?
a)
A representation of all the feeding relationships within a community.
b)
A way of showing how matter and energy pass from one organism to another.
c)
A food chain provides a more complete model of feeding relationships within a community.
18.
A food web is made up of
a)
one food chain.
b)
only producers.
c)
many different food chains.
19.
What does an energy pyramid represent?
a)
Food pyramids show the different food chains in a community.
b)
Energy pyramids show the same total matter at all levels.
c)
Shows the amount of energy available at each feeding level in an ecosystem.
20.
Why can't the top level contain a large number of organisms?
a)
Because as energy moves from the bottom to the top level, less and less energy is available to higher levels.
b)
Because the original energy from producers is the total energy available to all the organisms in the energy pyramid.
c)
because only about ten percent of the energy available at one level is transferred to the next level.
d)
all of the above
21.
Which group of organisms is missing from the food web above?
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Decomposer
22.
Looking at the chart below what type of organism is the Alaskan brown bear?
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Decomposer
23.
Which of the following has the largest population in the Indian River Lagoon system?
a)
Crab
b)
Egret
c)
Flounder
d)
Phytoplankton
24.
In the Indian River Lagoon System, many organisms compete for food. Which organism in the food web competes with the egrets for food?
a)
Clam worm
b)
Crab
c)
Flounder
d)
Heron
25.
How much energy will be available for the flounder if the plankton at the bottom of this pyramid is able to produce 10,000 kcal of energy from the photosynthesis?
a)
1000
b)
100
c)
10
d)
1
26.
Which of the following is a tertiary consumer from the food web shown?
a)
Kite
b)
Owl
c)
Jackal
d)
Tree
27.
Which two organisms compete for the rabbit for energy?
a)
Mouse and Tree
b)
Owl and Goat
c)
Wildcat and Jackal
d)
Lion and Jackal
28.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
29.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
30.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
31.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
32.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
33.
Respiration is the process by which animals take in _____ and release _____.
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
34.
The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?
a)
X : Respiration
Y : Predation
Y : Predation
b)
X : Adaptation
Y : Decomposition
Y : Decomposition
c)
X : Fermentation
Y : Nitrogen Fixation
Y : Nitrogen Fixation
d)
X : Decomposition
Y : Respiration
Y : Respiration
35.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
d)
higher levels of oxygen in the atmosphere
36.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
37.
The process by which gases in the atmosphere absorb and radiate energy as heat back to Earth.
a)
lake-effect snow
b)
sublimation
c)
condensation
d)
greenhouse effect
38.
Living vegetation and the ocean are known as "carbon sinks" because
a)
they are made of carbon.
b)
they create carbon.
c)
they destroy carbon.
d)
they store carbon.
39.
By what amount did carbon dioxide in Earth's atmosphere increase between 1960 and 2000?
a)
40 -50 ppm
b)
60 -70 ppm
c)
110 -120 ppm
d)
360 -370 ppm
100 %
