183639
In a copulating pair of Pheretima posthuma which of the two processes take place?
1 Internal fertilization and reciprocal fertilization
2 Cross fertilization and reciprocal fertilization
3 Reciprocal fertilization and internal fertilization
4 External fertilization and internal fertilization
Explanation:
B In the copulating pair of pheretima posthuma cross fertilization and reciprocal fertilization process takes place. Cross fertilization means fusion of egg from one individual with a sperm or male gamete from a different Individual.
MGIMS Wardha-2012 HP CET-2011
Structural Organization in Animals
183641
Blood of Pheretima is
1 blue with haemocyanin in corpuscles
2 blue with haemoglobin in corpuscles
3 red with haemoglobin in corpuscles
4 red with haemoglobin in plasma
Explanation:
D Pheretima is a genus of earthworms that belongs to phylum annelida. The blood of phertima is red in colour due to the presence of haemoglobinwhich is an iron containing pigment. - Blood of pheretima is red in colour and respiratory pigment haemoglobin in dissolved in blood plasma.
CMC Vellore-2011
Structural Organization in Animals
183642
The female genital pore of pheretima posthuma located upon the segment
1 \(14^{\text {th }}\)
2 \(16^{\text {th }}\)
3 \(18^{\text {th }}\)
4 \(15^{\text {th }}\)
Explanation:
A In pheretima posthuma (common Indian earthworm)female genital pore are present upon segment \(14^{\text {th }}\)while one pair ovary an segment \(13^{\text {th }}\). - Ovarien and funnels are present beneath the ovaries which continue into oviduct join together and open on the ventral side as a single median female genital pore on the \(14^{\text {th }}\) segment.
VMMC-2012 JIPMER-2009
Structural Organization in Animals
183643
Metanephridia is the excretory system in
1 Cockroach
2 Locust
3 Earthworm
4 Birds
Explanation:
C Metanephridia is a type of nephridiumfound in every segment of earthworm. They are an important part of the excretory system and help in the formation of urine to excrete the waste out of the body while conserving the water. - Metanephridium is an excretory organ found in invertebrates like arthropodsannelids and molluscs.
183639
In a copulating pair of Pheretima posthuma which of the two processes take place?
1 Internal fertilization and reciprocal fertilization
2 Cross fertilization and reciprocal fertilization
3 Reciprocal fertilization and internal fertilization
4 External fertilization and internal fertilization
Explanation:
B In the copulating pair of pheretima posthuma cross fertilization and reciprocal fertilization process takes place. Cross fertilization means fusion of egg from one individual with a sperm or male gamete from a different Individual.
MGIMS Wardha-2012 HP CET-2011
Structural Organization in Animals
183641
Blood of Pheretima is
1 blue with haemocyanin in corpuscles
2 blue with haemoglobin in corpuscles
3 red with haemoglobin in corpuscles
4 red with haemoglobin in plasma
Explanation:
D Pheretima is a genus of earthworms that belongs to phylum annelida. The blood of phertima is red in colour due to the presence of haemoglobinwhich is an iron containing pigment. - Blood of pheretima is red in colour and respiratory pigment haemoglobin in dissolved in blood plasma.
CMC Vellore-2011
Structural Organization in Animals
183642
The female genital pore of pheretima posthuma located upon the segment
1 \(14^{\text {th }}\)
2 \(16^{\text {th }}\)
3 \(18^{\text {th }}\)
4 \(15^{\text {th }}\)
Explanation:
A In pheretima posthuma (common Indian earthworm)female genital pore are present upon segment \(14^{\text {th }}\)while one pair ovary an segment \(13^{\text {th }}\). - Ovarien and funnels are present beneath the ovaries which continue into oviduct join together and open on the ventral side as a single median female genital pore on the \(14^{\text {th }}\) segment.
VMMC-2012 JIPMER-2009
Structural Organization in Animals
183643
Metanephridia is the excretory system in
1 Cockroach
2 Locust
3 Earthworm
4 Birds
Explanation:
C Metanephridia is a type of nephridiumfound in every segment of earthworm. They are an important part of the excretory system and help in the formation of urine to excrete the waste out of the body while conserving the water. - Metanephridium is an excretory organ found in invertebrates like arthropodsannelids and molluscs.
183639
In a copulating pair of Pheretima posthuma which of the two processes take place?
1 Internal fertilization and reciprocal fertilization
2 Cross fertilization and reciprocal fertilization
3 Reciprocal fertilization and internal fertilization
4 External fertilization and internal fertilization
Explanation:
B In the copulating pair of pheretima posthuma cross fertilization and reciprocal fertilization process takes place. Cross fertilization means fusion of egg from one individual with a sperm or male gamete from a different Individual.
MGIMS Wardha-2012 HP CET-2011
Structural Organization in Animals
183641
Blood of Pheretima is
1 blue with haemocyanin in corpuscles
2 blue with haemoglobin in corpuscles
3 red with haemoglobin in corpuscles
4 red with haemoglobin in plasma
Explanation:
D Pheretima is a genus of earthworms that belongs to phylum annelida. The blood of phertima is red in colour due to the presence of haemoglobinwhich is an iron containing pigment. - Blood of pheretima is red in colour and respiratory pigment haemoglobin in dissolved in blood plasma.
CMC Vellore-2011
Structural Organization in Animals
183642
The female genital pore of pheretima posthuma located upon the segment
1 \(14^{\text {th }}\)
2 \(16^{\text {th }}\)
3 \(18^{\text {th }}\)
4 \(15^{\text {th }}\)
Explanation:
A In pheretima posthuma (common Indian earthworm)female genital pore are present upon segment \(14^{\text {th }}\)while one pair ovary an segment \(13^{\text {th }}\). - Ovarien and funnels are present beneath the ovaries which continue into oviduct join together and open on the ventral side as a single median female genital pore on the \(14^{\text {th }}\) segment.
VMMC-2012 JIPMER-2009
Structural Organization in Animals
183643
Metanephridia is the excretory system in
1 Cockroach
2 Locust
3 Earthworm
4 Birds
Explanation:
C Metanephridia is a type of nephridiumfound in every segment of earthworm. They are an important part of the excretory system and help in the formation of urine to excrete the waste out of the body while conserving the water. - Metanephridium is an excretory organ found in invertebrates like arthropodsannelids and molluscs.
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Structural Organization in Animals
183639
In a copulating pair of Pheretima posthuma which of the two processes take place?
1 Internal fertilization and reciprocal fertilization
2 Cross fertilization and reciprocal fertilization
3 Reciprocal fertilization and internal fertilization
4 External fertilization and internal fertilization
Explanation:
B In the copulating pair of pheretima posthuma cross fertilization and reciprocal fertilization process takes place. Cross fertilization means fusion of egg from one individual with a sperm or male gamete from a different Individual.
MGIMS Wardha-2012 HP CET-2011
Structural Organization in Animals
183641
Blood of Pheretima is
1 blue with haemocyanin in corpuscles
2 blue with haemoglobin in corpuscles
3 red with haemoglobin in corpuscles
4 red with haemoglobin in plasma
Explanation:
D Pheretima is a genus of earthworms that belongs to phylum annelida. The blood of phertima is red in colour due to the presence of haemoglobinwhich is an iron containing pigment. - Blood of pheretima is red in colour and respiratory pigment haemoglobin in dissolved in blood plasma.
CMC Vellore-2011
Structural Organization in Animals
183642
The female genital pore of pheretima posthuma located upon the segment
1 \(14^{\text {th }}\)
2 \(16^{\text {th }}\)
3 \(18^{\text {th }}\)
4 \(15^{\text {th }}\)
Explanation:
A In pheretima posthuma (common Indian earthworm)female genital pore are present upon segment \(14^{\text {th }}\)while one pair ovary an segment \(13^{\text {th }}\). - Ovarien and funnels are present beneath the ovaries which continue into oviduct join together and open on the ventral side as a single median female genital pore on the \(14^{\text {th }}\) segment.
VMMC-2012 JIPMER-2009
Structural Organization in Animals
183643
Metanephridia is the excretory system in
1 Cockroach
2 Locust
3 Earthworm
4 Birds
Explanation:
C Metanephridia is a type of nephridiumfound in every segment of earthworm. They are an important part of the excretory system and help in the formation of urine to excrete the waste out of the body while conserving the water. - Metanephridium is an excretory organ found in invertebrates like arthropodsannelids and molluscs.
