The excretory material of bony fish is
urea
protein
ammonia
amino acid
Solenocytes are associated with
respiration
digestion
excretion
nutrition
Moulting hormone is secreted by
corpora cardacum
corpora allata
neurosecretory hormone
prothoracic gland
In sea anemone, the symmetry is
radial
bilateral
spherical
absent
Shell of molluscs is derived from
foot
mantle
ctenidia
placoid
Connecting link between annelids and molluscs is
Neopilina
Peripatus
Periplaneta
Limulus
Tuberllarians are free living
nematodes
cestodes
flat worms
trematodes
In Mollusca, eye is present over a stalk, called
ostracum
operculum
ommatophores
osphradium
The intermediate host of Schistosoma is
Snail
mosquito
housefly
sheep
The characteristic larva of Phylum- 'Coelenterata' is
planula
cysticercus
rhabdiform
wriggler
