The excretory organs of earthworm are
kidneys
solenocytes
nephridia
green glands
Correct Answer :
C. nephridia
Related Questions
The female genital aperture in earthworm is present ventrally on segment
10th
12th
14th
18th
The enteronephric nephridia in earthworm are
integumentary
pharyngeal only
septal only
both (b) and (c)
Blood glands in Earthworm are associated with
excretion
digestion
secretion
none of these
The fertilization in earthworms occurs in
oviduct
spermatheca
cocoon
clitellum
Earthworm has no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton due to
setae
circular muscles
coelomic fluid
longitudinal muscles
Sperma thecae in earthworm are meant few
producing sperms
storage of its own sperms
storage of sperms of another earthworm after copulation
all of these
Spermathecae in earthworm represent
coating of sperms
structure for storing sperms
male copula to ry organs
female copulatory organs
In earthworm, the genital papillae are situated ventrally on segments
17
18
19 and 22
17 and 19
In earthworm, the circular muscles are highly developed in
body wall
gizzard
typholsole
pharynx
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
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
A chitinous lining in earthworm is found in
pharynx
stomach
typholsole
gizzard
Locomotion in Earthworm is directly facilitated by
mucus secreted by epidermis
segmentation of the body
rhythmic contraction of segments
setae and contraction of segments
In earthworm testes are situated in the
10th and 11th segments
11th and 12th segments
14th and 15th segments
none of these
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
The gizzard of earthworm is an organ of
secretion of slime
excretion
absorption of digested food
crushing the food
The excretory organs of earthworm are
kidneys
solenocytes
nephridia
green glands
The coelomic fluid in earthworm escapes through
dorsal pores
coelomic pores
nephridial pores
anus
Structure typically represented in every segment of earthworm is
ovary
chloragogen cell
testes
ganglia
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 cliteilum singulum in earthworm is formed by
12,13 and 14 segments
13,14 and 15 segments
14,15 and 16 segments
16,17 and 1&segments
Nephrostomes are found in
integumentary nephridia
septal nephridia
pharyngeal nephridia
none of these
In earthworm, the nephridia without neprostomes are
pharyngeal
integumentary
both (a) and (b)
none of these
In earthworm fertilisation occurs in
oviduct
water
cocoon
ootheca
Which of the following statements is correct ?
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
Annelids show advancement over the nematoda in having
metameric segmentation
true coelom
closed circulatory system
all of these
Chetae are totally absent in
Nereis
Hirudinaria
Heteroneresis
Pheretima
In earthworm, the septal nephridia put their excretory discharge into
intestine
blood
coelom
gizzard
A skeleton like function during locomotion of Pheretima is performed by
alimentary canal laiden with mud
blood
coelmic fluid
ventral nerve cord