A-1

1
A-1
A-2
A-3
B-1
B-2
B-3
C-1
C-2
C-3
D-1
D-2
D-3
E-1
E-2
E-3
F-1
F-2
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G-1
G-2
G-3
H-1
H-2
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Name-1
Name-2
Name-3
Name-4
Name-5
Name-6
2
Many invertebrates have a simple body, how does
this benefit the organism?
3
Can regenerate or replace lost body parts, easier
to reproduce
4
Explain why many larger invertebrates live in the
ocean
5
The water supports their bodies since they have
no bones
6
What is the difference between an exoskeleton and
an endoskeleton? Give an example of an organism
with each type.
7
Exoskeleton-skeleton on the outside (like a suit
of armor)ex-insects, crustaceans, arthropods,
etc.Endoskeleton-internal skeleton
ex-echinoderms, sponges, etc
8
Name 3 characteristics that all members of Phylum
Arthropoda share.
9
An exoskeleton, jointed appendages and segmented
bodies
10
What are the names of the 3 classes of arthropods
we studied in class?
11
Insecta, Crustacea and Arachnida
12
Give 3 reasons why a dragonfly is a member of
Class Insecta.
13
Answers will vary- 6 legs, 2 pairs of wings, 1
pair of antennae, three body segments (head,
thorax and abdomen)
14
Name 2 reasons why earthworms are beneficial to
the soil.
15
Loosen the soil, make soil more fertile, allow
air/water/roots to move
16
Explain the relationship between a dog and a
tapeworm.
17
The dog is the host to the tapeworm, the tapeworm
is a parasite to the dog. The worm gets its
nutrients from the dog which harms the dog.
18
Phylum Platyhelminthes, Phylum Nematoda and
Phylum Annelida are the three groups of worms we
studied in class. What is the main
characteristic that separates these into
different phyla? Which is which?
19
Shape of the worm separates the worms into
different groups (flat-round-segmented)
Annelidasegmented worms, Platyhelminthesflat
worms and Nematodaroundworms
20
A sea star can replace a lost limb by what
process? Describe the process.
21
Regeneration-when a sea star loses an arm, it can
grow a new arm through regeneration
22
What 2 structures do sea stars use to move and
capture prey?
23
Arm and tube feet
24
What are 2 characteristics that all Echinoderms
share?
25
Endoskeleton and radial symmetry
26
Describe how a nematocyst works.
27
Threads shoot out and release poison into prey
which paralyzes it. Located on tentacles and are
activated when prey touches.
28
What are the two body shapes for cnidarians?
Draw a sketch of each.
29
Polyp and Medusa
30
What type of reproduction did the slides that you
observed of the hydra show? Describe this type
of reproduction, dont just say the name!
31
Budding- a type of asexual reproduction. Budding
is when a new organism grows off the parents
body. Only involves one parent and offspring is
identical to parent.
32
What does the word Porifera mean and what does
that have to do with sponges?
33
It means Pore-Bearing and sponges have
thousands of tiny pores (holes) all over their
bodies
34
Explain how sponges obtain their food.
35
They filter (strain) it from the water. They are
then called filter feeders.
36
What characteristic do sponges and echinoderms
share that helps protect them?
37
They both have a spiny internal skeleton
38
What is a radula?
39
Rows of teeth used to break up food. Found in
Molluks.
40
Name and describe the method that Cephalopods use
to swim.
41
Jet propulsion-they shoot water out in one
direction which moves them in the opposite
direction. Organ that performs this is called a
siphon.
42
What does Gastropod mean and why are they named
that?
43
Stomach Foot because their stomach is on the
same side as their foot
44
What class of vertebrates has a 3 chambered
heart, claws on their feet, lay their eggs on
land and are ectothermic?
45
Class Reptilia
46
What is the difference between ectothermic
animals and endothermic animals?
47
Endothermic animals can regulate their own body
temperature. Ectothermic animals can not
regulate their own body temperature, it changes
with their outside environment.
48
Match the picture of the organism to the group of
invertebrates it belongs to.
2
1

1. Phylum Porifera
2. Phylum Echinodermata
3. Phylum Arthropoda
4. Phylum Cnidaria

3
4
49
1. D-Phylum Cnidaria 2. A-Phylum Porifera 3.
B-Phylum Echinodermata 4. C-Phylum Arthropoda
50
Name the phylum that the organism belongs to.
Christmas Tree Worm
51
Phylum Annelida
52
Poison Dart Frog
Name the phylum and class that the organism
belongs to.
53
Phylum ChordataClass Amphibia
54
Sea Urchin
Name the phylum that the organism belongs to.
55
Phylum Echinodermata
56
Cuttlefish
Name the phylum and class that the organism
belongs to.
57
Phylum MolluscaClass Cephalopoda
58
Snail
Name the phylum and class that the organism
belongs to.
59
Phylum MolluscaClass Gastropoda
60
Roundworm
Name the phylum that the organism belongs to.
61
Phylum Nematoda