Biology: The Dynamics of Life, North Carolina Edition

Section 2: Nutrition and Energy Flow

Nutrition and Energy Flow

1
The air in our atmosphere contains approximately 78 percent of which of these elements?
A)nitrogen
B)carbon
C)calcium
D)phosphorous
2
Which of these statements is true?
A)Owls are herbivores and bees are decomposers.
B)Fungi are omnivores and squirrels are scavengers.
C)Lions are decomposers and bears are carnivores.
D)Black vultures are scavengers and grasshoppers are herbivores.
3
Rabbits, elephants, and squirrels are examples of __________.
A)herbivores
B)carnivores
C)producers
D)scavengers
4
Which of these organisms breaks down and releases nutrients from other dead organisms?
A)herbivores
B)producers
C)decomposers
D)carnivores
5
What element is considered the building block of all the molecules of life?
A)hydrogen
B)sodium
C)carbon
D)magnesium
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