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
integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
secretion of slime
excretion
absorption of digested food
crushing the food
producing sperms
storage of its own sperms
storage of sperms of another earthworm after copulation
all of these
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
continuous throughout
continuous throughout except in first 26 segments
continuous only in first four segments
divided into a number of compartments throughout
distributive in 1-13 segments
collective in 1-13
completely distributive
completely collective
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
fifth to twenty-sixth segment
first to twenty-sixth segment
fifteenth to twenty-sixth segment
immediately after clitellar region to twenty sixth segment
ovary
chloragogen cell
testes
ganglia
Nereis
Hirudinaria
Heteroneresis
Pheretima
10th and 11th segments
11th and 12th segments
14th and 15th segments
none of these
pharyngeal
integumentary
both (a) and (b)
none of these
alimentary canal laiden with mud
blood
coelmic fluid
ventral nerve cord
oviduct
water
cocoon
ootheca
House fly
Frog
Nereis
All of these
conservation of water
conservation of heat
regulation of temperature
regulation of amino acids
intestine
blood
coelom
gizzard
17
18
19 and 22
17 and 19
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
integumentary
pharyngeal only
septal only
both (b) and (c)
generally at night during rainy season
generally at day time during rainy season
at night during winter season
at night during summer season
metameric segmentation
true coelom
closed circulatory system
all of these
mucus secreted by epidermis
segmentation of the body
rhythmic contraction of segments
setae and contraction of segments
oviduct
spermatheca
cocoon
clitellum
kidneys
solenocytes
nephridia
green glands
earthworm
ringworm
roundworm
clemworm
body wall
gizzard
typholsole
pharynx
40% urea and 40% uric acid
50% urea and 40% ammonia
40% ammonia and 20% amino acids
60% ammonia and 20% amino acids
Pharyngeal region
Clitellar region
Intestinal region
Typhlosolar region