Blood glands in Earthworm are associated with
excretion
digestion
secretion
none of these
Correct Answer :
C. secretion
Related Questions
In earthworm, the septal nephridia put their excretory discharge into
intestine
blood
coelom
gizzard
Metamerism is present in
House fly
Frog
Nereis
All of these
In earthworm, the first segment in which mouth is situated is known as
prostomium
peristomium
stomium
protostomium
Totally marine annelids belong to the
oligochaeta
polychaeta
hirudinea
archainnelida
Which region in earthworm is the forest of nephridia ?
Pharyngeal region
Clitellar region
Intestinal region
Typhlosolar region
The number of segments in leech is
26
33
44
120
Nephrostomes are found in
integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
Earthworms do not have any respiratory organs because
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
Pheretima is
sterile
unisexual
hermaphrodite
radial symmetrical
The coelom in Pherethna is
continuous throughout
continuous throughout except in first 26 segments
continuous only in first four segments
divided into a number of compartments throughout
Copulation occurs between two earthworms
generally at night during rainy season
generally at day time during rainy season
at night during winter season
at night during summer season
Anticoagulant secreted by leech is
Hirudin
Heparin
Haematin
Haemozoin
The gizzard of earthworm is an organ of
secretion of slime
excretion
absorption of digested food
crushing the food
Blood glands in Earthworm are associated with
excretion
digestion
secretion
none of these
The enteronephric nephridia in earthworm are
integumentary
pharyngeal only
septal only
both (b) and (c)
The nitrogenous waste in earthworm consist of about
40% urea and 40% uric acid
50% urea and 40% ammonia
40% ammonia and 20% amino acids
60% ammonia and 20% amino acids
In earthworm fertilisation occurs in
oviduct
water
cocoon
ootheca
The terminal nephridial ducts of the septal nephridia of Pheretima open into
each intersegmental septum
septal excretory canal
lumen of the intestine
supra-intestinal excretory ducts
The excretory organs of earthworm are
kidneys
solenocytes
nephridia
green glands
In the blood vascular system of earthworm there are four pairs of hearts present in the first 13 segments. These are situated in the segments
7th, 8 th, 9th and 10th
8th, 10th, 12th and 15th
8th, 9th, 12th and 13th
7th, 9th, 12th and 13th
The dorsal blood vessel in earthworm is
distributive in 1-13 segments
collective in 1-13
completely distributive
completely collective
A skeleton like function during locomotion of Pheretima is performed by
alimentary canal laiden with mud
blood
coelmic fluid
ventral nerve cord
The direction of blood flow in the dorsal vessel of earthworm is
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)
Haemoglobin is dissolved in plasma is
Earthworm
Ascaris
Tapeworm
Insects
Spermathecae in earthworm represent
coating of sperms
structure for storing sperms
male copula to ry organs
female copulatory organs
Role of typhlosole in the intestine of earthworm is
to kill bacteria
to increase absorptive surface
to produce digestive enzymes
to control blood flow
Chromophil cells in earthworm are concerned with the secretion of
amylase
proteases
lipases
cocoon
Chloragogen cells of Pheretima play a role very much like that of
Liver of vertebrates
Choanocytes of sponges
Malpighian tubules of vertebrates
None of these
The fertilization in earthworms occurs in
oviduct
spermatheca
cocoon
clitellum
In earthworm, the nephridia without neprostomes are
pharyngeal
integumentary
both (a) and (b)
none of these