40% urea and 40% uric acid
50% urea and 40% ammonia
40% ammonia and 20% amino acids
60% ammonia and 20% amino acids
B. 50% urea and 40% ammonia
alimentary canal laiden with mud
blood
coelmic fluid
ventral nerve cord
helps in fixing atmospheric nitrogen
helps in making the land porous
kills harmful bacteria of the soil
helps in making the land fertile by turning it upside down
pharyngeal
integumentary
both (a) and (b)
none of these
ovary
chloragogen cell
testes
ganglia
distributive in 1-13 segments
collective in 1-13
completely distributive
completely collective
continuous throughout
continuous throughout except in first 26 segments
continuous only in first four segments
divided into a number of compartments throughout
pharynx
stomach
typholsole
gizzard
Nereis
Hirudinaria
Heteroneresis
Pheretima
40% urea and 40% uric acid
50% urea and 40% ammonia
40% ammonia and 20% amino acids
60% ammonia and 20% amino acids
oviduct
water
cocoon
ootheca
sterile
unisexual
hermaphrodite
radial symmetrical
10th
12th
14th
18th
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
setae
circular muscles
coelomic fluid
longitudinal muscles
Pharyngeal region
Clitellar region
Intestinal region
Typhlosolar region
body wall
gizzard
typholsole
pharynx
producing sperms
storage of its own sperms
storage of sperms of another earthworm after copulation
all of these
amylase
proteases
lipases
cocoon
oviduct
spermatheca
cocoon
clitellum
17
18
19 and 22
17 and 19
fifth to twenty-sixth segment
first to twenty-sixth segment
fifteenth to twenty-sixth segment
immediately after clitellar region to twenty sixth segment
conservation of water
conservation of heat
regulation of temperature
regulation of amino acids
earthworm
ringworm
roundworm
clemworm
dorsal pores
coelomic pores
nephridial pores
anus
integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
10th and 11th segments
11th and 12th segments
14th and 15th segments
none of these
26
33
44
120
liver of invertebrates
liver of vertebrates
kidney of vertebrates
uriniferous tubules of vertebrates
prostomium
peristomium
stomium
protostomium
intestine
blood
coelom
gizzard