Glencoe Biology

Section 2: Birds

Self-Check Quizzes

1
How many chambers does this heart have?

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A)four
B)two
C)six
D)one
2
The base of a bird's stomach is a muscular sac called the ____.
A)cerebellum
B)crop
C)gizzard
D)preen gland
3
Study the flow of air shown here. During inhalation, air moves from the lungs into ____.

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A)posterior air sacs
B)anterior air sacs
C)posterior and anterior air sacs
D)trachea
4
What is a main difference between the metabolisms of birds and reptiles?
A)Birds cannot generate their own body heat.
B)Birds are ectotherms.
C)Reptiles generate their own body heat.
D)Birds are endotherms.
5
How is the position of a pigeon's eyes beneficial?
A)allows it to see while sleeping
B)allows it to focus on fast prey
C)allows underwater vision
D)allows it to see predators in all directions
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