B The earthworm's circulatory system consists of four pairs of heartsone pair each in segments 7912 and 13 . Hearts located in the \(7^{\text {th }}\) and \(9^{\text {th }}\) segments are called lateral hearts with 4 pairs of valves and those in the \(12^{\text {th }}\) and \(13^{\text {th }}\) segments are called lateral esophageal hearts with 3 pairs of valves.
JCECE-2007 AFMC-2006
Structural Organization in Animals
183668
In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis-
1 10 pairs
2 10 pairs
3 12 pairs
4 24 pairs
Explanation:
C In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis 12 pairs. These are about 12 vessels per segment. Through these vessels blood of lateral oesophageals reaches the supraesophageal.
AP EAMCET - 2003 Uttarakhand PMT-2010
Structural Organization in Animals
183669
Silicates consumed along with food by Pheretima and excreted by-
1 Flame cells
2 chloragogen cells
3 intestinal cells
4 basal cells
Explanation:
B Silicates consumed along with food by pheretima and excreted by chloragogen cells. The chloragogen cells excrete silicates consumed along with the food by pheretima.
Uttarakhand PMT-2010
Structural Organization in Animals
183670
If an earthworm is left in 40 solution for a long timewhich part would be left undissloved?
1 Setae
2 Sperma thecae
3 Sand particles
4 Circular muscles
Explanation:
A If an earthworm is left in 40 solution for a long timeSetae would be left undissolved. Setae are chitinous structures that help the earthworm in locomotion.
Punjab MET-2007
Structural Organization in Animals
183671
Which of the following is the character of dorsal blood vessel of the earthworm?
1 Collecting in the whole body
2 Collecting in first 13 segments
3 Distributing in the whole body
4 Distributing in the first 13 segments
Explanation:
D Ventral blood vessel is found below the alimentary canal and above the ventral nerve cord. It is also a long blood vessel that runs from second segment to the last segment of the body. In the interior segments (first 13 segments) ventral blood vessel supplies blood to the body wall..
B The earthworm's circulatory system consists of four pairs of heartsone pair each in segments 7912 and 13 . Hearts located in the \(7^{\text {th }}\) and \(9^{\text {th }}\) segments are called lateral hearts with 4 pairs of valves and those in the \(12^{\text {th }}\) and \(13^{\text {th }}\) segments are called lateral esophageal hearts with 3 pairs of valves.
JCECE-2007 AFMC-2006
Structural Organization in Animals
183668
In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis-
1 10 pairs
2 10 pairs
3 12 pairs
4 24 pairs
Explanation:
C In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis 12 pairs. These are about 12 vessels per segment. Through these vessels blood of lateral oesophageals reaches the supraesophageal.
AP EAMCET - 2003 Uttarakhand PMT-2010
Structural Organization in Animals
183669
Silicates consumed along with food by Pheretima and excreted by-
1 Flame cells
2 chloragogen cells
3 intestinal cells
4 basal cells
Explanation:
B Silicates consumed along with food by pheretima and excreted by chloragogen cells. The chloragogen cells excrete silicates consumed along with the food by pheretima.
Uttarakhand PMT-2010
Structural Organization in Animals
183670
If an earthworm is left in 40 solution for a long timewhich part would be left undissloved?
1 Setae
2 Sperma thecae
3 Sand particles
4 Circular muscles
Explanation:
A If an earthworm is left in 40 solution for a long timeSetae would be left undissolved. Setae are chitinous structures that help the earthworm in locomotion.
Punjab MET-2007
Structural Organization in Animals
183671
Which of the following is the character of dorsal blood vessel of the earthworm?
1 Collecting in the whole body
2 Collecting in first 13 segments
3 Distributing in the whole body
4 Distributing in the first 13 segments
Explanation:
D Ventral blood vessel is found below the alimentary canal and above the ventral nerve cord. It is also a long blood vessel that runs from second segment to the last segment of the body. In the interior segments (first 13 segments) ventral blood vessel supplies blood to the body wall..
B The earthworm's circulatory system consists of four pairs of heartsone pair each in segments 7912 and 13 . Hearts located in the \(7^{\text {th }}\) and \(9^{\text {th }}\) segments are called lateral hearts with 4 pairs of valves and those in the \(12^{\text {th }}\) and \(13^{\text {th }}\) segments are called lateral esophageal hearts with 3 pairs of valves.
JCECE-2007 AFMC-2006
Structural Organization in Animals
183668
In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis-
1 10 pairs
2 10 pairs
3 12 pairs
4 24 pairs
Explanation:
C In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis 12 pairs. These are about 12 vessels per segment. Through these vessels blood of lateral oesophageals reaches the supraesophageal.
AP EAMCET - 2003 Uttarakhand PMT-2010
Structural Organization in Animals
183669
Silicates consumed along with food by Pheretima and excreted by-
1 Flame cells
2 chloragogen cells
3 intestinal cells
4 basal cells
Explanation:
B Silicates consumed along with food by pheretima and excreted by chloragogen cells. The chloragogen cells excrete silicates consumed along with the food by pheretima.
Uttarakhand PMT-2010
Structural Organization in Animals
183670
If an earthworm is left in 40 solution for a long timewhich part would be left undissloved?
1 Setae
2 Sperma thecae
3 Sand particles
4 Circular muscles
Explanation:
A If an earthworm is left in 40 solution for a long timeSetae would be left undissolved. Setae are chitinous structures that help the earthworm in locomotion.
Punjab MET-2007
Structural Organization in Animals
183671
Which of the following is the character of dorsal blood vessel of the earthworm?
1 Collecting in the whole body
2 Collecting in first 13 segments
3 Distributing in the whole body
4 Distributing in the first 13 segments
Explanation:
D Ventral blood vessel is found below the alimentary canal and above the ventral nerve cord. It is also a long blood vessel that runs from second segment to the last segment of the body. In the interior segments (first 13 segments) ventral blood vessel supplies blood to the body wall..
B The earthworm's circulatory system consists of four pairs of heartsone pair each in segments 7912 and 13 . Hearts located in the \(7^{\text {th }}\) and \(9^{\text {th }}\) segments are called lateral hearts with 4 pairs of valves and those in the \(12^{\text {th }}\) and \(13^{\text {th }}\) segments are called lateral esophageal hearts with 3 pairs of valves.
JCECE-2007 AFMC-2006
Structural Organization in Animals
183668
In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis-
1 10 pairs
2 10 pairs
3 12 pairs
4 24 pairs
Explanation:
C In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis 12 pairs. These are about 12 vessels per segment. Through these vessels blood of lateral oesophageals reaches the supraesophageal.
AP EAMCET - 2003 Uttarakhand PMT-2010
Structural Organization in Animals
183669
Silicates consumed along with food by Pheretima and excreted by-
1 Flame cells
2 chloragogen cells
3 intestinal cells
4 basal cells
Explanation:
B Silicates consumed along with food by pheretima and excreted by chloragogen cells. The chloragogen cells excrete silicates consumed along with the food by pheretima.
Uttarakhand PMT-2010
Structural Organization in Animals
183670
If an earthworm is left in 40 solution for a long timewhich part would be left undissloved?
1 Setae
2 Sperma thecae
3 Sand particles
4 Circular muscles
Explanation:
A If an earthworm is left in 40 solution for a long timeSetae would be left undissolved. Setae are chitinous structures that help the earthworm in locomotion.
Punjab MET-2007
Structural Organization in Animals
183671
Which of the following is the character of dorsal blood vessel of the earthworm?
1 Collecting in the whole body
2 Collecting in first 13 segments
3 Distributing in the whole body
4 Distributing in the first 13 segments
Explanation:
D Ventral blood vessel is found below the alimentary canal and above the ventral nerve cord. It is also a long blood vessel that runs from second segment to the last segment of the body. In the interior segments (first 13 segments) ventral blood vessel supplies blood to the body wall..
B The earthworm's circulatory system consists of four pairs of heartsone pair each in segments 7912 and 13 . Hearts located in the \(7^{\text {th }}\) and \(9^{\text {th }}\) segments are called lateral hearts with 4 pairs of valves and those in the \(12^{\text {th }}\) and \(13^{\text {th }}\) segments are called lateral esophageal hearts with 3 pairs of valves.
JCECE-2007 AFMC-2006
Structural Organization in Animals
183668
In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis-
1 10 pairs
2 10 pairs
3 12 pairs
4 24 pairs
Explanation:
C In Pheretimathe number of ring vessels per segment in 12th and 13th segmentis 12 pairs. These are about 12 vessels per segment. Through these vessels blood of lateral oesophageals reaches the supraesophageal.
AP EAMCET - 2003 Uttarakhand PMT-2010
Structural Organization in Animals
183669
Silicates consumed along with food by Pheretima and excreted by-
1 Flame cells
2 chloragogen cells
3 intestinal cells
4 basal cells
Explanation:
B Silicates consumed along with food by pheretima and excreted by chloragogen cells. The chloragogen cells excrete silicates consumed along with the food by pheretima.
Uttarakhand PMT-2010
Structural Organization in Animals
183670
If an earthworm is left in 40 solution for a long timewhich part would be left undissloved?
1 Setae
2 Sperma thecae
3 Sand particles
4 Circular muscles
Explanation:
A If an earthworm is left in 40 solution for a long timeSetae would be left undissolved. Setae are chitinous structures that help the earthworm in locomotion.
Punjab MET-2007
Structural Organization in Animals
183671
Which of the following is the character of dorsal blood vessel of the earthworm?
1 Collecting in the whole body
2 Collecting in first 13 segments
3 Distributing in the whole body
4 Distributing in the first 13 segments
Explanation:
D Ventral blood vessel is found below the alimentary canal and above the ventral nerve cord. It is also a long blood vessel that runs from second segment to the last segment of the body. In the interior segments (first 13 segments) ventral blood vessel supplies blood to the body wall..
