Download Worksheet-Phylum Molluscs-11 paragraph

11. Phylum Mollusca. Class of Gastropods and Class of Bivalve molluscs
1. Fill the information “Internal structure of Mollusca”
Organs and
Features of structure
system of
organs
The digestive
system
Function
The
respiratory
system
The
circulatory
system
The
excretory
system
Nervous
system
Reproduction
2. Consider the drawing "The external and internal structure of the mollusсs" (Fig.33, page 56) and
sign what is indicated by the numbers 1-7
1
2
3
4
5
6
7
3. What is the differences between gastropods and bivalves? What are their similarities?
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4. How is the structure of molluscs differs from the structure of annelids?
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