coating of sperms
structure for storing sperms
male copula to ry organs
female copulatory organs
B. structure for storing sperms
Pharyngeal region
Clitellar region
Intestinal region
Typhlosolar region
Earthworm
Ascaris
Tapeworm
Insects
17
18
19 and 22
17 and 19
to kill bacteria
to increase absorptive surface
to produce digestive enzymes
to control blood flow
10th
12th
14th
18th
pharynx
stomach
typholsole
gizzard
coating of sperms
structure for storing sperms
male copula to ry organs
female copulatory organs
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
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
Nereis
Hirudinaria
Heteroneresis
Pheretima
liver of invertebrates
liver of vertebrates
kidney of vertebrates
uriniferous tubules of vertebrates
Hirudin
Heparin
Haematin
Haemozoin
integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
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
kidneys
solenocytes
nephridia
green glands
oviduct
spermatheca
cocoon
clitellum
40% urea and 40% uric acid
50% urea and 40% ammonia
40% ammonia and 20% amino acids
60% ammonia and 20% amino acids
10th and 11th segments
11th and 12th segments
14th and 15th segments
none of these
dorsal pores
coelomic pores
nephridial pores
anus
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
integumentary
pharyngeal only
septal only
both (b) and (c)
each intersegmental septum
septal excretory canal
lumen of the intestine
supra-intestinal excretory ducts
continuous throughout
continuous throughout except in first 26 segments
continuous only in first four segments
divided into a number of compartments throughout
fifth to twenty-sixth segment
first to twenty-sixth segment
fifteenth to twenty-sixth segment
immediately after clitellar region to twenty sixth segment
generally at night during rainy season
generally at day time during rainy season
at night during winter season
at night during summer season
alimentary canal laiden with mud
blood
coelmic fluid
ventral nerve cord
amylase
proteases
lipases
cocoon
conservation of water
conservation of heat
regulation of temperature
regulation of amino acids
mucus secreted by epidermis
segmentation of the body
rhythmic contraction of segments
setae and contraction of segments
metameric segmentation
true coelom
closed circulatory system
all of these