183672
The part of spermatheca of earthworm that acts as store house of spermatozoa is
1 ampulla
2 diverticulum
3 both [a] and [b]
4 none of these
Explanation:
B The part of spermatheca of earthworm that acts as store house of spermatozoa is diverticulum. The spermatheca consists of two distinct areasthe dorsal sperm storage areaconsisting of appocrine glandular epithelium and the ventral partwhich includes the fertilisation area.
Punjab MET-2007
Structural Organization in Animals
183674
In earthworms setae are present in all segments except the :
1 First and the last segments
2 First and the clitellum
3 First segment
4 Clitellum and last segments
5 Firstclitellum and last segments
Explanation:
: In earthworms setaes are present in all segments except the first clitellum and last segments. In each segment bear a ring of tiny curvedchitinous structure known as setae. Setae helps in locomotion and copulation.
Kerala PMT-2011
Structural Organization in Animals
183675
Which of the following organs in earthworm neutralizes humic acid present in humus?
1 Typhlosole
2 Calciferous glands
3 Intestinal caecum
4 Gizzard
Explanation:
B Calciferous glands in earthworm neutraliges humic acid present in human the calciferous gland are present in segments \(10^{\text {th }}-14^{\text {th }}\)and consist of a pair of oesophageal pouches in segment \(10^{\text {th }}\) and a pair of oesophageal gland in each of segments \(11^{\text {th }}\) and \(12^{\text {th }}\). - In segment \(10^{\text {th }}\) the oesophageal epithelium is raised up to into long narrow longitudinal folds projecting into the lumen. Clitellum or cingulum - It is circular or glandular band around 14th15th and 16thit secrets albumenglobulin and egg case (cocoon). It divides the body of the earthworm into pre-clitellarcitellar and post- clitellar.
J and K CET-2013
Structural Organization in Animals
183676
Integumentary nephridia are also called:
1 enteronephric
2 exonephric
3 sometimes enteronephric and sometimes exonephric
4 both [a] and [b]
Explanation:
B Integumentary nephridia are also called exonephrichaving the excretory organs discharge through the body wall (as in some annelids worms). - Enteronephric nephridia eject their wastes into the alimentary canal. There are smallest \(\mathrm{V}\) shaped and without nephrostome. Integumentary nephridia are scattered in body wall of pheretima.
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Structural Organization in Animals
183672
The part of spermatheca of earthworm that acts as store house of spermatozoa is
1 ampulla
2 diverticulum
3 both [a] and [b]
4 none of these
Explanation:
B The part of spermatheca of earthworm that acts as store house of spermatozoa is diverticulum. The spermatheca consists of two distinct areasthe dorsal sperm storage areaconsisting of appocrine glandular epithelium and the ventral partwhich includes the fertilisation area.
Punjab MET-2007
Structural Organization in Animals
183674
In earthworms setae are present in all segments except the :
1 First and the last segments
2 First and the clitellum
3 First segment
4 Clitellum and last segments
5 Firstclitellum and last segments
Explanation:
: In earthworms setaes are present in all segments except the first clitellum and last segments. In each segment bear a ring of tiny curvedchitinous structure known as setae. Setae helps in locomotion and copulation.
Kerala PMT-2011
Structural Organization in Animals
183675
Which of the following organs in earthworm neutralizes humic acid present in humus?
1 Typhlosole
2 Calciferous glands
3 Intestinal caecum
4 Gizzard
Explanation:
B Calciferous glands in earthworm neutraliges humic acid present in human the calciferous gland are present in segments \(10^{\text {th }}-14^{\text {th }}\)and consist of a pair of oesophageal pouches in segment \(10^{\text {th }}\) and a pair of oesophageal gland in each of segments \(11^{\text {th }}\) and \(12^{\text {th }}\). - In segment \(10^{\text {th }}\) the oesophageal epithelium is raised up to into long narrow longitudinal folds projecting into the lumen. Clitellum or cingulum - It is circular or glandular band around 14th15th and 16thit secrets albumenglobulin and egg case (cocoon). It divides the body of the earthworm into pre-clitellarcitellar and post- clitellar.
J and K CET-2013
Structural Organization in Animals
183676
Integumentary nephridia are also called:
1 enteronephric
2 exonephric
3 sometimes enteronephric and sometimes exonephric
4 both [a] and [b]
Explanation:
B Integumentary nephridia are also called exonephrichaving the excretory organs discharge through the body wall (as in some annelids worms). - Enteronephric nephridia eject their wastes into the alimentary canal. There are smallest \(\mathrm{V}\) shaped and without nephrostome. Integumentary nephridia are scattered in body wall of pheretima.
183672
The part of spermatheca of earthworm that acts as store house of spermatozoa is
1 ampulla
2 diverticulum
3 both [a] and [b]
4 none of these
Explanation:
B The part of spermatheca of earthworm that acts as store house of spermatozoa is diverticulum. The spermatheca consists of two distinct areasthe dorsal sperm storage areaconsisting of appocrine glandular epithelium and the ventral partwhich includes the fertilisation area.
Punjab MET-2007
Structural Organization in Animals
183674
In earthworms setae are present in all segments except the :
1 First and the last segments
2 First and the clitellum
3 First segment
4 Clitellum and last segments
5 Firstclitellum and last segments
Explanation:
: In earthworms setaes are present in all segments except the first clitellum and last segments. In each segment bear a ring of tiny curvedchitinous structure known as setae. Setae helps in locomotion and copulation.
Kerala PMT-2011
Structural Organization in Animals
183675
Which of the following organs in earthworm neutralizes humic acid present in humus?
1 Typhlosole
2 Calciferous glands
3 Intestinal caecum
4 Gizzard
Explanation:
B Calciferous glands in earthworm neutraliges humic acid present in human the calciferous gland are present in segments \(10^{\text {th }}-14^{\text {th }}\)and consist of a pair of oesophageal pouches in segment \(10^{\text {th }}\) and a pair of oesophageal gland in each of segments \(11^{\text {th }}\) and \(12^{\text {th }}\). - In segment \(10^{\text {th }}\) the oesophageal epithelium is raised up to into long narrow longitudinal folds projecting into the lumen. Clitellum or cingulum - It is circular or glandular band around 14th15th and 16thit secrets albumenglobulin and egg case (cocoon). It divides the body of the earthworm into pre-clitellarcitellar and post- clitellar.
J and K CET-2013
Structural Organization in Animals
183676
Integumentary nephridia are also called:
1 enteronephric
2 exonephric
3 sometimes enteronephric and sometimes exonephric
4 both [a] and [b]
Explanation:
B Integumentary nephridia are also called exonephrichaving the excretory organs discharge through the body wall (as in some annelids worms). - Enteronephric nephridia eject their wastes into the alimentary canal. There are smallest \(\mathrm{V}\) shaped and without nephrostome. Integumentary nephridia are scattered in body wall of pheretima.
183672
The part of spermatheca of earthworm that acts as store house of spermatozoa is
1 ampulla
2 diverticulum
3 both [a] and [b]
4 none of these
Explanation:
B The part of spermatheca of earthworm that acts as store house of spermatozoa is diverticulum. The spermatheca consists of two distinct areasthe dorsal sperm storage areaconsisting of appocrine glandular epithelium and the ventral partwhich includes the fertilisation area.
Punjab MET-2007
Structural Organization in Animals
183674
In earthworms setae are present in all segments except the :
1 First and the last segments
2 First and the clitellum
3 First segment
4 Clitellum and last segments
5 Firstclitellum and last segments
Explanation:
: In earthworms setaes are present in all segments except the first clitellum and last segments. In each segment bear a ring of tiny curvedchitinous structure known as setae. Setae helps in locomotion and copulation.
Kerala PMT-2011
Structural Organization in Animals
183675
Which of the following organs in earthworm neutralizes humic acid present in humus?
1 Typhlosole
2 Calciferous glands
3 Intestinal caecum
4 Gizzard
Explanation:
B Calciferous glands in earthworm neutraliges humic acid present in human the calciferous gland are present in segments \(10^{\text {th }}-14^{\text {th }}\)and consist of a pair of oesophageal pouches in segment \(10^{\text {th }}\) and a pair of oesophageal gland in each of segments \(11^{\text {th }}\) and \(12^{\text {th }}\). - In segment \(10^{\text {th }}\) the oesophageal epithelium is raised up to into long narrow longitudinal folds projecting into the lumen. Clitellum or cingulum - It is circular or glandular band around 14th15th and 16thit secrets albumenglobulin and egg case (cocoon). It divides the body of the earthworm into pre-clitellarcitellar and post- clitellar.
J and K CET-2013
Structural Organization in Animals
183676
Integumentary nephridia are also called:
1 enteronephric
2 exonephric
3 sometimes enteronephric and sometimes exonephric
4 both [a] and [b]
Explanation:
B Integumentary nephridia are also called exonephrichaving the excretory organs discharge through the body wall (as in some annelids worms). - Enteronephric nephridia eject their wastes into the alimentary canal. There are smallest \(\mathrm{V}\) shaped and without nephrostome. Integumentary nephridia are scattered in body wall of pheretima.