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Ch 8, Les 1-3, 7th Grade
Test Description: Animals
Instructions: Answer all questions to get your test result.
1) Nerve cells that detect stimuli
A
impulse neurons
B
motor neurons
C
sensory neurons
D
interneurons
2) A ___ is a group of neurons that receives information, interprets it, and controls an animal's response.
A
nerve net
B
nerve cord
C
brain
D
lung
3) A hard outer covering that supports the animal and protects it
A
endoskeleton
B
hydrostatic skeleton
C
water vascular system
D
exoskeleton
4) Some animals don't have skeletons with hard parts.
A
true
B
false
5) An arthropod must periodically ___ when they grow because their skeletons are too small.
A
grow
B
molt
C
impulse
D
respond
6) Which is true of endoskeletons?
A
they contain living cells
B
vertebrates with endoskeletons grow larger tahn animals with exoskeletons
C
all of the above
D
endoskeletons are relatively light
7) Vertebrates do not have jointed appendages.
A
true
B
false
8) Muscles can be found
A
all of the above
B
inside organs
C
attached to the inside of exoskeletons
D
attached to the outside of bones or cartilage
9) Which of the following happens at a joint?
A
a new exoskeleton is formed
B
muscle cells grow
C
spikelike structures are made in cells
D
two parts of a skeleton meet
10) Cartilage is ___ flexible than bone.
A
less
B
none of the above
C
more
D
equally as
11) Nerve cells that carry response information to muscles and other organs
A
interneurons
B
sensory neurons
C
motor neurons
D
impulse neurons
12) The odor of baking bread is an example of a(n)
A
response
B
stimulus
C
neuron
D
impulse
13) Animals move to
A
maintain homeostasis
B
all of the above
C
obtain food
D
defend and protect themselves
14) A squid moves through the water using
A
webbed feet
B
streamlined bodies
C
flippers
D
jet propulsion
15) An internal, gas-filled sac that helps a fish stay at a certain depth
A
swim bladder
B
swim liver
C
floatation bladder
D
balance bladder
16) A system of fluid-filled tubes that allow echinoderms to grip surfaces and move along
A
water vascular system
B
oily livers
C
hydrostatic skeletons
D
swim bladders
17) A nerve cell with a unique structure for receiving and passing on information
A
neuron
B
joint
C
nucleus
D
synapse
18) Animals with many sense organs can process many stimuli at the same time.
A
false
B
true
19) Which does NOT have an endoskeleton?
A
birds
B
Teddy Cat
C
earthworm
D
camel
20) Sharks and some fishes have endoskeletons made of
A
bone
B
spikes
C
skin
D
cartilage
*select an answer for all questions
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