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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
hormones
B
blood and saliva
C
sugars
D
target cells
2) A change or signal in the environment that can make an organism react is called a(n)
A
response
B
stimulus
C
impulse
D
reaction
3) What happens during delivery?
A
The lining of the uterus thickens in preparation for the arrival of a zygote
B
Muscle contractions push the placenta out of the mother's body
C
The baby is pushed out of the uterus through the vagina
D
A zygote with the proper number of chromosomes is formed
4) Sound waves travel through the ear where they are converted to vibrations. The vibrations are then converted into
A
a reflex action
B
nerve impulses
C
neurons
D
receptors
5) The ___ is composed of the nerves of the somatic and autonomic nervous systems.
A
voluntary nervous system
B
involuntary 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 feedback
B
positive impulse
C
negative impulse
D
positive feedback
7) Your nervous system
A
all of the above
B
helps maintain homeostasis
C
receives info about what is happening inside and outside the body
D
directs how your body responds to info
8) The nucleus of a neuron is found in its
A
myelin
B
axon
C
cell body
D
dendrite
9) The neuron that sends an impulse to a muscle or gland, enabling it to respond, is a
A
motor neuron
B
interneuron
C
axon
D
sensory neuron
10) Which is NOT true about synapses?
A
electrical impulses are changed to chemical impulses
B
neurons transfer impulses here
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
spinal cord
B
peripheral nerves
C
neurons
D
brain
12) The ___ controls your body's involuntary actions, like breathing and heart beat
A
brain stem
B
cerebellum
C
cerebrum
D
frontal cortex
13) What protects the brain from injury?
A
layers of connective tissue
B
fluid
C
the skull
D
all of the above
14) The ___ nervous system controls involuntary actions like digesting food.
A
hydromatic
B
somatic
C
supersonic
D
autonomic
15) The lens focuses light rays onto the ___,
A
iris
B
pupil
C
cornea
D
retina
16) Which is not a main taste sensation?
A
metallic
B
umami
C
salty
D
bitter
17) Sound waves hit the ____ and are converted to vibrations.
A
cochlea
B
hammer
C
ear drum
D
anvil
18) Touch receptors are found
A
only in hands
B
only in the fingertips
C
in all areas of your skin
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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