10th and 11th segments
11th and 12th segments
14th and 15th segments
none of these
A. 10th and 11th segments
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
dorsal pores
coelomic pores
nephridial pores
anus
liver of invertebrates
liver of vertebrates
kidney of vertebrates
uriniferous tubules of vertebrates
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
intestine
blood
coelom
gizzard
Earthworm
Ascaris
Tapeworm
Insects
mucus secreted by epidermis
segmentation of the body
rhythmic contraction of segments
setae and contraction of segments
sterile
unisexual
hermaphrodite
radial symmetrical
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)
producing sperms
storage of its own sperms
storage of sperms of another earthworm after copulation
all of these
each intersegmental septum
septal excretory canal
lumen of the intestine
supra-intestinal excretory ducts
Liver of vertebrates
Choanocytes of sponges
Malpighian tubules of vertebrates
None of these
conservation of water
conservation of heat
regulation of temperature
regulation of amino acids
Blood of earthworm is blue in colour
Blood pigment of earthworm is haemocyanin
Blood pigment of earthworm is red and haemoglobin is dissolved in plasma
Blood of earthworm is red and haemoglobin is dissolved in RBC
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
fifth to twenty-sixth segment
first to twenty-sixth segment
fifteenth to twenty-sixth segment
immediately after clitellar region to twenty sixth segment
setae
circular muscles
coelomic fluid
longitudinal muscles
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
40% urea and 40% uric acid
50% urea and 40% ammonia
40% ammonia and 20% amino acids
60% ammonia and 20% amino acids
Hirudin
Heparin
Haematin
Haemozoin
pharyngeal
integumentary
both (a) and (b)
none of these
integumentary
pharyngeal only
septal only
both (b) and (c)
17
18
19 and 22
17 and 19
excretion
digestion
secretion
none of these
10th
12th
14th
18th
kidneys
solenocytes
nephridia
green glands
distributive in 1-13 segments
collective in 1-13
completely distributive
completely collective
oviduct
water
cocoon
ootheca
prostomium
peristomium
stomium
protostomium
7th, 8 th, 9th and 10th
8th, 10th, 12th and 15th
8th, 9th, 12th and 13th
7th, 9th, 12th and 13th