6 The largest class of the phylum mollusca is the class
pelecypoda
cephalopoda
polychaeta
gastropoda
7 Snail belongs to the class
pelecypoda
cephalopoda
gastropoda
polychaeta
8 Volvox is a ——- algae
colonial
unicellular
filamentous
heterotrichus
9 The red algae are ———- in form
colonial
filamentous
heterotrichus
polysiphonoid
10 A widely distributed genus of the Pteridophyte is
Cycad
pteris
spirogyra
euglena
11 Which of these is not classfied as a platyhelminthes?
turbellaria
trematodes
coelenterates
cestodes
12 Which of these is mostly free living and aquatic?
trematoda
cestoda
tapeworms
turbellaria
13 Liver fluke is an example of the phylum——–
coelenterata
arthropoda
protozoa
platyhelminthes