Focus On Earth Science: California Grade 6

Chapter 13: Energy and Matter in Ecosystems

Standards Review

1.
Which of the following is an example of a producer? 5.c
A)grass
B)human
C)Preservation
D)dog
2.
Which of these is a consumer? 5.c
A)a fungus
B)grass
C)a dead tree
D)a grasshopper
3.
Which term best describes the fungus that grows on trees? 5.c
A)consumer
B)producer
C)decomposer
D)predator
4.
Photosynthesis is a plant process used to __________. 5.a
A)release energy
B)store energy
C)produce offspring
D)copy chromosomes
5.
Which of these makes its own food? 5.c
A)producers
B)carnivores
C)water
D)soil
6.
Consumers are organisms that cannot __________. 5.c
A)survive
B)reproduce
C)photosynthesize
D)evaporate
7.
Grass uses photosynthesis to produce __________. 5.a
A)fewer offspring
B)water
C)evaporation
D)sugar molecules
8.
Which of these is an energy source for chemosynthesis? 5.c
A)moonlight
B)sulfur molecules
C)sunlight
D)omnivores
9.
Energy flows through an ecosystem in which form? 5.a
A)food
B)water
C)sunlight
D)heat
10.
Which of the following does a food web model? 5.a
A)Energy moves through an ecosystem.
B)Ecosystems change over time.
C)Producers use sunlight.
D)Abiotic factors affect populations.
11.
A food chain does not show every _______ in the community. 5.a
A)environment
B)habitat
C)species
D)niche
12.
Which of these is true? 5.a
A)Producers never make their own food.
B)Energy is never converted from one form to another.
C)Consumers produce their own food.
D)Energy can be transferred form one organism to another.
13.
Which of these organisms is the first step in a food chain? 5.a
A)producers
B)consumers
C)amphibians
D)mammals
14.
Which of these is the correct order of a food chain? 5.a
A)Grass is eaten by a rabbit, which is eaten by a wolf.
B)A wolf is eaten by grass, which is eaten by a rabbit.
C)A rabbit is eaten by a wolf, which is eaten by grass.
D)A rabbit is eaten by grass, which is eaten by a wolf.
15.
Which group makes up the largest level of an energy pyramid? 5.a
A)omnivores
B)producers
C)carnivores
D)consumers
16.
Which organisms in a food chain have the least available energy? 5.a
A)All have the same amount of available energy.
B)those in the first link
C)those in the middle links
D)those in the last link
17.
Which of these is part of the nitrogen cycle? 5.b
A)Nitrogen is produced by living organisms.
B)Nitrogen is absorbed by plants when they die.
C)Nitrogen goes from the atmosphere to the soil.
D)Nitrogen is removed from soil by animal wastes.
18.
How long have the carbon atoms in your body been on Earth? 5.b
A)billions of years
B)as long as you have been alive
C)probably less than one year
D)15 minutes
19.
What cycle of matter involves carbon dioxide in Earth's atmosphere? 5.b
A)carbon
B)nitrogen
C)water
D)oxygen
20.
Bacteria nodules associated with certain plants change _________ from the air into a form that can be used by most organisms. 5.b
A)carbon dioxide
B)nitrogen
C)oxygen
D)water vapor
Grade 6
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