Radial symmetry is, usually, exhibited in animals which
live in water
have ciliary mode of feeding
are attached to the substratum
have one opening of alimentary canal
What is left, when bath-sponges dries up?
spicules
holdfast
tentacles
spongin fibres
Butterflies belong to the order
diptera
coleoptera
lepidoptera
hymenoptera
Which of the following is correct?
mollusca-bivalvia-pila
annelida-hirudinea-silver fish
mollusca-cephalopoda-octopus
arthropoda-arachinida-grasshopper
Animals with radial symmetry in adult and bilateral symmetry in larva are
annelids
coelenterates
echinoderms
platyhelminthes
Which of the following phylum includes largest number of species?
protozoa
annelida
arthropoda
Alimentary canal is not found in
apoda
cestoda
gastropoda
arachnida
Contractile vacuole is absent in
sporozoa
sarcodina
flagellata
ciliata
Which of the following pairs is correctly matched?
uricotelism - aquatic habitat
parasitism - intra-specific relationship
streamlined body - aquatic adaptation
excessive perspiration - xeric adaptation
Flatworms and ribbonworms have
bilateral symmetry
organ level of organization
presence of mesoderm
all of these
