Georgia Science Grade 7

Chapter 21: Control and Coordination

CRCT Practice

1
Which part of the brain helps in maintaining balance?

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A)cerebrum
B)cerebellum
C)brain stem
D)no brain region
2
Which part of the brain controls involuntary actions?

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A)cerebrum
B)cerebellum
C)brain stem
D)no brain region
3
In which part of the brain is memory stored?

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A)cerebrum
B)cerebellum
C)brain stem
D)no brain region
4
In Michigan, it is illegal for drivers under 21 years of age to drink alcohol. Underage drivers can be arrested for drinking and driving if their blood alcohol percentage is more than 0.02 percent. According to this information, how many drinks would it t

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A)three
B)two
C)one
D)zero
5
In some states, the legal blood alcohol percentage limit for driving while under the influence of alcohol is 0.08 percent. According to this information, how many drinks would a 54-kg man have to consume to exceed this limit?

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A)four
B)three
C)two
D)one
6
Which helps control the body's balance?
A)retina
B)eardrum
C)cochlea
D)cristae ampullaris
7
What neurons conduct impulses from the brain to glands?
A)dendrites
B)interneurons
C)sensory neurons
D)motor neurons
8
What carries impulses from the eye to the vision area of the brain?
A)visual cortex
B)optic nerve
C)sensory neurons
D)dendrites
9
Which of the years from 1996 to 2000 had the greatest total number of bicycle deaths?

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A)2000
B)1997
C)1996
D)1998
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