10th
12th
14th
18th
C. 14th
integumentary
pharyngeal only
septal only
both (b) and (c)
pharynx
stomach
typholsole
gizzard
Liver of vertebrates
Choanocytes of sponges
Malpighian tubules of vertebrates
None of these
Pharyngeal region
Clitellar region
Intestinal region
Typhlosolar region
7th, 8 th, 9th and 10th
8th, 10th, 12th and 15th
8th, 9th, 12th and 13th
7th, 9th, 12th and 13th
setae
circular muscles
coelomic fluid
longitudinal muscles
coating of sperms
structure for storing sperms
male copula to ry organs
female copulatory organs
10th
12th
14th
18th
integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
17
18
19 and 22
17 and 19
metameric segmentation
true coelom
closed circulatory system
all of these
from the posterior to the anterior end
from the anterior end to the posterior end
from dorsal vessel to ventral vessel
alternately in both directions (a) and (b)
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
kidneys
solenocytes
nephridia
green glands
distributive in 1-13 segments
collective in 1-13
completely distributive
completely collective
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
excretion
digestion
secretion
none of these
ovary
chloragogen cell
testes
ganglia
intestine
blood
coelom
gizzard
alimentary canal laiden with mud
blood
coelmic fluid
ventral nerve cord
10th and 11th segments
11th and 12th segments
14th and 15th segments
none of these
liver of invertebrates
liver of vertebrates
kidney of vertebrates
uriniferous tubules of vertebrates
generally at night during rainy season
generally at day time during rainy season
at night during winter season
at night during summer season
fifth to twenty-sixth segment
first to twenty-sixth segment
fifteenth to twenty-sixth segment
immediately after clitellar region to twenty sixth segment
Nereis
Hirudinaria
Heteroneresis
Pheretima
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
producing sperms
storage of its own sperms
storage of sperms of another earthworm after copulation
all of these
pharyngeal
integumentary
both (a) and (b)
none of these
oviduct
spermatheca
cocoon
clitellum
26
33
44
120