Question

Mention four general characters and economic importance of mollusca.

Answer 1

GENERAL CHARACTERS=

1=body is soft and segmented

2=body is bilaterally symmetrical except gastropods which are asymmetrical

3=triploblastic

4=organ system level of organisation

ECONOMIC IMPORTANCE=

1=molluscan shells are used for making ornaments

2=shells of oysters are mixed with tar for making roads

EXAMPLES ARE=

octopus and squid..........

HOPE IT HELPS