integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
B. septal nephridia
amylase
proteases
lipases
cocoon
oviduct
water
cocoon
ootheca
integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
they do not need them
they are burrowing in habit
there is no sufficient space for such organs
the surface acts as an absorptive area which is larger than the volume
setae
circular muscles
coelomic fluid
longitudinal muscles
each intersegmental septum
septal excretory canal
lumen of the intestine
supra-intestinal excretory ducts
40% urea and 40% uric acid
50% urea and 40% ammonia
40% ammonia and 20% amino acids
60% ammonia and 20% amino acids
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
generally at night during rainy season
generally at day time during rainy season
at night during winter season
at night during summer season
conservation of water
conservation of heat
regulation of temperature
regulation of amino acids
liver of invertebrates
liver of vertebrates
kidney of vertebrates
uriniferous tubules of vertebrates
metameric segmentation
true coelom
closed circulatory system
all of these
10th
12th
14th
18th
Liver of vertebrates
Choanocytes of sponges
Malpighian tubules of vertebrates
None of these
secretion of slime
excretion
absorption of digested food
crushing the food
earthworm
ringworm
roundworm
clemworm
close to lateral hearts in segments 12 and 13
along the latero-oesophageal hearts in segments 12 and 13
both (a) and (b)
behind the pharyngeal mass in segments 4, 5 and 6
body wall
gizzard
typholsole
pharynx
7th, 8 th, 9th and 10th
8th, 10th, 12th and 15th
8th, 9th, 12th and 13th
7th, 9th, 12th and 13th
coating of sperms
structure for storing sperms
male copula to ry organs
female copulatory organs
integumentary
pharyngeal only
septal only
both (b) and (c)
oviduct
spermatheca
cocoon
clitellum
prostomium
peristomium
stomium
protostomium
Nereis
Hirudinaria
Heteroneresis
Pheretima
dorsal pores
coelomic pores
nephridial pores
anus
mucus secreted by epidermis
segmentation of the body
rhythmic contraction of segments
setae and contraction of segments
excretion
digestion
secretion
none of these
alimentary canal laiden with mud
blood
coelmic fluid
ventral nerve cord
pharyngeal
integumentary
both (a) and (b)
none of these
oligochaeta
polychaeta
hirudinea
archainnelida