183718
During the development of zygote of earthworm micromeres develop into
1 Mesoderm
2 Endoderm
3 Ectoderm
4 All the three germinal layers
Explanation:
B Micromeres give rise to the endoderma portion of the ectodermand also secondary mesenchyme cells during normal development. - Micromeres fractionated by elutriation developed into gastrula like or exogastrula-like embryoids.
AP EAMCET-2007
Structural Organization in Animals
183640
Blood circulation in earthworm is :
1 Closed type
2 Open type
3 Haemoglobin is present in RBC
4 Oxygen not transported by blood
Explanation:
A Vertebrates have a closed circulatory system. In closed circulatory systems the blood closed within vessels of different size and wall thickness. In this systemblood is pumped by heart through vessels. - The earthworm has a closed circulatory system that circulates blood exclusively through vessels. They have three main vessels that supply the blood to organs within the earthworm. The ventral blood vessels carrying blood back from the body of earthworm.
AIIMS-26.05.2019 Shift-I
Structural Organization in Animals
183652
The following are the various external apertures in Pheretima
1 \(\mathrm{B}\mathrm{C}\mathrm{D}\mathrm{A}\)
2 ABCD
3 \(\mathrm{C}\mathrm{B}\mathrm{A}\mathrm{D}\)
4 \(\mathrm{C}\mathrm{B}\mathrm{D}\mathrm{A}\)
Explanation:
D Apperture Segment No. Nephridiopres - 3 to 5 Spermathecal aperture - 6 to 9 Female genital aperture- 14-16 Male genital aperture - \(\quad 17-18\)
TS EAMCET-10.08.2021 Shift-I
Structural Organization in Animals
183655
Mark the correct statement regarding earthworm
1 One pair of female genital pores are present in \(14^{\text {th }}\) segment
2 Four pairs of spermathecae are situated on ventro lateral sides of the intersegmental grooves i.e. \(5^{\text {th }}\) segments
3 Clitellum is present in 13-15 segements
4 Four pairs of spermathecae are located in 6th9th segments
Explanation:
D In earth worm 4 pair of spermathecae are 5/66/77/88/9. - Spermathecae is a cavity where sperms are storedthere are 4 pairs of small flask shaped structure called as spermathecae. These are present ventro-laterallyone pair in each segment 6th7th8th and 9th.
183718
During the development of zygote of earthworm micromeres develop into
1 Mesoderm
2 Endoderm
3 Ectoderm
4 All the three germinal layers
Explanation:
B Micromeres give rise to the endoderma portion of the ectodermand also secondary mesenchyme cells during normal development. - Micromeres fractionated by elutriation developed into gastrula like or exogastrula-like embryoids.
AP EAMCET-2007
Structural Organization in Animals
183640
Blood circulation in earthworm is :
1 Closed type
2 Open type
3 Haemoglobin is present in RBC
4 Oxygen not transported by blood
Explanation:
A Vertebrates have a closed circulatory system. In closed circulatory systems the blood closed within vessels of different size and wall thickness. In this systemblood is pumped by heart through vessels. - The earthworm has a closed circulatory system that circulates blood exclusively through vessels. They have three main vessels that supply the blood to organs within the earthworm. The ventral blood vessels carrying blood back from the body of earthworm.
AIIMS-26.05.2019 Shift-I
Structural Organization in Animals
183652
The following are the various external apertures in Pheretima
1 \(\mathrm{B}\mathrm{C}\mathrm{D}\mathrm{A}\)
2 ABCD
3 \(\mathrm{C}\mathrm{B}\mathrm{A}\mathrm{D}\)
4 \(\mathrm{C}\mathrm{B}\mathrm{D}\mathrm{A}\)
Explanation:
D Apperture Segment No. Nephridiopres - 3 to 5 Spermathecal aperture - 6 to 9 Female genital aperture- 14-16 Male genital aperture - \(\quad 17-18\)
TS EAMCET-10.08.2021 Shift-I
Structural Organization in Animals
183655
Mark the correct statement regarding earthworm
1 One pair of female genital pores are present in \(14^{\text {th }}\) segment
2 Four pairs of spermathecae are situated on ventro lateral sides of the intersegmental grooves i.e. \(5^{\text {th }}\) segments
3 Clitellum is present in 13-15 segements
4 Four pairs of spermathecae are located in 6th9th segments
Explanation:
D In earth worm 4 pair of spermathecae are 5/66/77/88/9. - Spermathecae is a cavity where sperms are storedthere are 4 pairs of small flask shaped structure called as spermathecae. These are present ventro-laterallyone pair in each segment 6th7th8th and 9th.
183718
During the development of zygote of earthworm micromeres develop into
1 Mesoderm
2 Endoderm
3 Ectoderm
4 All the three germinal layers
Explanation:
B Micromeres give rise to the endoderma portion of the ectodermand also secondary mesenchyme cells during normal development. - Micromeres fractionated by elutriation developed into gastrula like or exogastrula-like embryoids.
AP EAMCET-2007
Structural Organization in Animals
183640
Blood circulation in earthworm is :
1 Closed type
2 Open type
3 Haemoglobin is present in RBC
4 Oxygen not transported by blood
Explanation:
A Vertebrates have a closed circulatory system. In closed circulatory systems the blood closed within vessels of different size and wall thickness. In this systemblood is pumped by heart through vessels. - The earthworm has a closed circulatory system that circulates blood exclusively through vessels. They have three main vessels that supply the blood to organs within the earthworm. The ventral blood vessels carrying blood back from the body of earthworm.
AIIMS-26.05.2019 Shift-I
Structural Organization in Animals
183652
The following are the various external apertures in Pheretima
1 \(\mathrm{B}\mathrm{C}\mathrm{D}\mathrm{A}\)
2 ABCD
3 \(\mathrm{C}\mathrm{B}\mathrm{A}\mathrm{D}\)
4 \(\mathrm{C}\mathrm{B}\mathrm{D}\mathrm{A}\)
Explanation:
D Apperture Segment No. Nephridiopres - 3 to 5 Spermathecal aperture - 6 to 9 Female genital aperture- 14-16 Male genital aperture - \(\quad 17-18\)
TS EAMCET-10.08.2021 Shift-I
Structural Organization in Animals
183655
Mark the correct statement regarding earthworm
1 One pair of female genital pores are present in \(14^{\text {th }}\) segment
2 Four pairs of spermathecae are situated on ventro lateral sides of the intersegmental grooves i.e. \(5^{\text {th }}\) segments
3 Clitellum is present in 13-15 segements
4 Four pairs of spermathecae are located in 6th9th segments
Explanation:
D In earth worm 4 pair of spermathecae are 5/66/77/88/9. - Spermathecae is a cavity where sperms are storedthere are 4 pairs of small flask shaped structure called as spermathecae. These are present ventro-laterallyone pair in each segment 6th7th8th and 9th.
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Structural Organization in Animals
183718
During the development of zygote of earthworm micromeres develop into
1 Mesoderm
2 Endoderm
3 Ectoderm
4 All the three germinal layers
Explanation:
B Micromeres give rise to the endoderma portion of the ectodermand also secondary mesenchyme cells during normal development. - Micromeres fractionated by elutriation developed into gastrula like or exogastrula-like embryoids.
AP EAMCET-2007
Structural Organization in Animals
183640
Blood circulation in earthworm is :
1 Closed type
2 Open type
3 Haemoglobin is present in RBC
4 Oxygen not transported by blood
Explanation:
A Vertebrates have a closed circulatory system. In closed circulatory systems the blood closed within vessels of different size and wall thickness. In this systemblood is pumped by heart through vessels. - The earthworm has a closed circulatory system that circulates blood exclusively through vessels. They have three main vessels that supply the blood to organs within the earthworm. The ventral blood vessels carrying blood back from the body of earthworm.
AIIMS-26.05.2019 Shift-I
Structural Organization in Animals
183652
The following are the various external apertures in Pheretima
1 \(\mathrm{B}\mathrm{C}\mathrm{D}\mathrm{A}\)
2 ABCD
3 \(\mathrm{C}\mathrm{B}\mathrm{A}\mathrm{D}\)
4 \(\mathrm{C}\mathrm{B}\mathrm{D}\mathrm{A}\)
Explanation:
D Apperture Segment No. Nephridiopres - 3 to 5 Spermathecal aperture - 6 to 9 Female genital aperture- 14-16 Male genital aperture - \(\quad 17-18\)
TS EAMCET-10.08.2021 Shift-I
Structural Organization in Animals
183655
Mark the correct statement regarding earthworm
1 One pair of female genital pores are present in \(14^{\text {th }}\) segment
2 Four pairs of spermathecae are situated on ventro lateral sides of the intersegmental grooves i.e. \(5^{\text {th }}\) segments
3 Clitellum is present in 13-15 segements
4 Four pairs of spermathecae are located in 6th9th segments
Explanation:
D In earth worm 4 pair of spermathecae are 5/66/77/88/9. - Spermathecae is a cavity where sperms are storedthere are 4 pairs of small flask shaped structure called as spermathecae. These are present ventro-laterallyone pair in each segment 6th7th8th and 9th.
