CEPHALOTHORAX
ECHIDNODERMS
EXOSKELETON
CRUSTACEANS
SEGMENTBODY
ARACHNIDS
BUTTERFLY
INSECTS
SPIDER
CRABS
E
X
O
S
K
E
L
E
T
O
N
W
P
O
T
L
O
C
A
R
A
C
H
N
I
D
S
H
O
H
S
E
C
B
R
X
Q
L
R
C
A
X
U
E
B
U
A
M
J
V
O
S
S
P
I
D
E
R
B
D
C
I
P
E
R
E
M
C
K
U
K
I
U
P
W
U
R
R
O
A
X
E
A
I
R
L
I
I
C
E
H
E
T
I
U
Z
C
C
D
J
L
A
Z
I
L
T
Y
A
S
T
B
S
T
I
U
O
V
I
B
J
F
E
T
D
L
T
E
X
T
Z
D
A
N
P
Q
S
L
I
W
Z
O
O
C
R
Z
A
S
K
D
D
O
K
G
P
X
U
T
B
T
E
F
S
C
N
V
E
I
Q
O
I
D
N
A
A
T
H
S
L
E
E
C
A
A
H
X
O
C
N
R
O
O
N
O
N
Y
U
A
Z
U
B
C
E
L
Y
H
M
R
C
E
R
I
O
K
N
B
U
I
E
F
B
V
G
D
O
Z
M
A
N
P
N
S
E
S
X
S
W
Z
U
A
A
U
O
G
X
U
M
K
T
W
K
U
E
V
I
O
U
B
O
F
E
X
O
F
G
V
A
A
A
C
C
M
G
A
O
G
S
S
P
L
E
Q
U
N
S
Z
P
E
S
N
