Larva of housefly lacks
eyes
wings
spiracles
hind legs
Starfish belongs to the phylum
pisces
mollusca
arthropoda
echinodermata
The endocrine gland of insects, which secretes the juvenile hormone, is
corpora allata
corpora myeacena
corpora albicants
corpora cavernosa
The condition resulting from infestation by the larvae (maggots) of flies, is
myiasis
castration
histolysis
necrosis
Phallic organs in cockroach are related to
male excretory system
male reproductive system
female excretory system
female reproductive system
Ambulacral grooves are absent in the living forms of the class
crinoidea
ophiuroidea
asteroidea
Spider web is formed by a fluid, which is present in its
cephalothorax
salivary gland
abdominal gland
parathyroid gland
Ecdysone is secreted from
insecta
trematoda
nematoda
polychaeta
Mouth parts of mosquitoes are of which of the following type?
sponging type
piercing and sucking type
biting and chewing type
chewing and lopping type
Which of the following groups of structures/organs have similar function?
antennae of cockroach tympanum of frog and citellum of earthworm
incisors of rat, gizzard(proventriculus) of cockroach and tube feet of starfish
typhlosole in earthworm, intestinal villi in rat and contractile vacuole in Amoeba.
nephridia in earthworm, malpighian tubules in the cockroach and urinary tubules in rat