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Ch 10, Life Science
Test Description: Controlling Body Processes
Instructions: Answer all questions to get your test result.
1) The endocrine system acts on the body through chemical products called
A
sugars
B
hormones
C
target cells
D
blood and saliva
2) A change or signal in the environment that can make an organism react is called a(n)
A
stimulus
B
impulse
C
response
D
reaction
3) What happens during delivery?
A
The baby is pushed out of the uterus through the vagina
B
The lining of the uterus thickens in preparation for the arrival of a zygote
C
A zygote with the proper number of chromosomes is formed
D
Muscle contractions push the placenta out of the mother's body
4) Sound waves travel through the ear where they are converted to vibrations. The vibrations are then converted into
A
nerve impulses
B
neurons
C
receptors
D
a reflex action
5) The ___ is composed of the nerves of the somatic and autonomic nervous systems.
A
involuntary nervous system
B
voluntary nervous system
C
central nervous system
D
peripheral nervous system
6) The endocrine system controls the amount of hormones in your bloodstream by a process known as
A
negative impulse
B
negative feedback
C
positive impulse
D
positive feedback
7) Your nervous system
A
directs how your body responds to info
B
all of the above
C
helps maintain homeostasis
D
receives info about what is happening inside and outside the body
8) The nucleus of a neuron is found in its
A
cell body
B
axon
C
myelin
D
dendrite
9) The neuron that sends an impulse to a muscle or gland, enabling it to respond, is a
A
sensory neuron
B
motor neuron
C
axon
D
interneuron
10) Which is NOT true about synapses?
A
neurons transfer impulses here
B
electrical impulses are changed to chemical impulses
C
There is a gap between the axon of one neuron and the dendrite of another
D
it is where cell bodies of two neurons overlap
11) The control center of the central nervous system is the
A
peripheral nerves
B
brain
C
neurons
D
spinal cord
12) The ___ controls your body's involuntary actions, like breathing and heart beat
A
frontal cortex
B
cerebellum
C
brain stem
D
cerebrum
13) What protects the brain from injury?
A
layers of connective tissue
B
all of the above
C
the skull
D
fluid
14) The ___ nervous system controls involuntary actions like digesting food.
A
supersonic
B
hydromatic
C
autonomic
D
somatic
15) The lens focuses light rays onto the ___,
A
pupil
B
retina
C
iris
D
cornea
16) Which is not a main taste sensation?
A
metallic
B
salty
C
bitter
D
umami
17) Sound waves hit the ____ and are converted to vibrations.
A
hammer
B
cochlea
C
ear drum
D
anvil
18) Touch receptors are found
A
in all areas of your skin
B
only in the fingertips
C
only in hands
D
in the arms and legs only
19) Which system causes longer-lasting effects?
A
nervous
B
endocrine
20) Hormones travel in the blood until they find their
A
duct
B
organ
C
target cells
D
gland
*select an answer for all questions
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