Question

Echinus
Leech
7.5.9 PRO
Chiton
Octopus
of animals,
netrical and
circulatory
low in well-
ic cavity is
These ani
triploblast
they shov
namely a
during the
rod-like su
runs along
the nervou
place for
movemen
proper not
lives or fc
Protochor
are Bal
Unio
5 (the word
s'). Some
utterflies
crabs (see
Pila
Fig. 7.18: Mollusca​

Answer 1

Answer:

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Answer 2

Explanation:

7.5.9 PRO

Chiton

Octopus

of animals,

netrical and

circulatory

low in well-

ic cavity is

These ani

triploblast

they shov

namely a

during the

rod-like su

runs along

the nervou

place for

movemen

proper not

lives or fc

Protochor

are Bal

Unio

5 (the word

s'). Some

utterflies

crabs (see

Pila

Fig. 7.18