183753
Which of the following characteristics incorrect with respect to cockroach?
1 \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal cerci
2 A ring of gastric caecae is present at the junction of midgut and hind gut
3 Hypopharynx lies within the cavity enclosed by the mouth parts
4 In females\(7^{\text {th }}-9^{\text {th }}\) sterna together form a genital pouch
Explanation:
B Point (b) is incorrect because gastric or hepatic caeca are present at the junction of the foregut and midgut. They are ring-shaped 6 to 8 blind tubuleswhich releases digestive juice. - Hypopharynx lies within the cavity enclosed by mouth parts. - In female Cockroachthe \(7^{\text {th }}\) sternum is boat shaped and together with the \(8^{\text {th }}\) and \(9^{\text {th }}\) sterna forms a genital pouch. - \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal Cerci and \(9^{\text {th }}\) sternum only in male Cockroachbears a pair of Chitinous anal style.
NEET-2021
Structural Organization in Animals
183759
Triangular joint in the leg of Periplaneta is
1 Coxa
2 Trochanter
3 Tibia
4 Tarsus
Explanation:
B The parts of the legs of a cockroach are the coxatrochanterfemurtibia and then the tarsus. The coxa is the upper part of the leg. The coxa region helps to connect the leg to the thoracic region of the body. - Then comes the trochanter which acts as the knee of the cockroach. - Femur is the largest region of the leg. Tibia of an insect is slender in comparison to the femur but is generally longer than femur.
TS EAMCET-28.09.2020 Shift-I
Structural Organization in Animals
183763
Identify the incorrect statement about morphology of cockroach.
1 1
2 2
3 3
4 4
Explanation:
C In the case of cockroachesthe fore wings (mesothoracic) are not used for flight as they are thickopaque and leatherythey only cover and protect the hind wings. They are also called tegmina. - A pair of antennae is present in cockroaches. These arise from membranous sockets lying in front of eyes. -Each antenna is made up of segments called podomeres. - Brood or genital pouch contains female gonoporespermathecal pores and collaterial glands.
AP EAMCET-25.09.2020 Shift-I
Structural Organization in Animals
183764
If the head of cockroach is removedit may live for few days because
1 the cockroach does not have nervous system.
2 the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
3 the head holds a \(1 / 3^{\text {rd }}\) of a nervous system while the rest is situated along the dorsal part of its body
4 the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
Explanation:
B If the head of cockroach is cut offit will still be alive for as long as one weekbecause the head holds a bit of a nervous system while the rest is situated along to ventral part of the body. - This is the reason Cockroach may live for few days even after removal of the head from the body.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Structural Organization in Animals
183753
Which of the following characteristics incorrect with respect to cockroach?
1 \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal cerci
2 A ring of gastric caecae is present at the junction of midgut and hind gut
3 Hypopharynx lies within the cavity enclosed by the mouth parts
4 In females\(7^{\text {th }}-9^{\text {th }}\) sterna together form a genital pouch
Explanation:
B Point (b) is incorrect because gastric or hepatic caeca are present at the junction of the foregut and midgut. They are ring-shaped 6 to 8 blind tubuleswhich releases digestive juice. - Hypopharynx lies within the cavity enclosed by mouth parts. - In female Cockroachthe \(7^{\text {th }}\) sternum is boat shaped and together with the \(8^{\text {th }}\) and \(9^{\text {th }}\) sterna forms a genital pouch. - \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal Cerci and \(9^{\text {th }}\) sternum only in male Cockroachbears a pair of Chitinous anal style.
NEET-2021
Structural Organization in Animals
183759
Triangular joint in the leg of Periplaneta is
1 Coxa
2 Trochanter
3 Tibia
4 Tarsus
Explanation:
B The parts of the legs of a cockroach are the coxatrochanterfemurtibia and then the tarsus. The coxa is the upper part of the leg. The coxa region helps to connect the leg to the thoracic region of the body. - Then comes the trochanter which acts as the knee of the cockroach. - Femur is the largest region of the leg. Tibia of an insect is slender in comparison to the femur but is generally longer than femur.
TS EAMCET-28.09.2020 Shift-I
Structural Organization in Animals
183763
Identify the incorrect statement about morphology of cockroach.
1 1
2 2
3 3
4 4
Explanation:
C In the case of cockroachesthe fore wings (mesothoracic) are not used for flight as they are thickopaque and leatherythey only cover and protect the hind wings. They are also called tegmina. - A pair of antennae is present in cockroaches. These arise from membranous sockets lying in front of eyes. -Each antenna is made up of segments called podomeres. - Brood or genital pouch contains female gonoporespermathecal pores and collaterial glands.
AP EAMCET-25.09.2020 Shift-I
Structural Organization in Animals
183764
If the head of cockroach is removedit may live for few days because
1 the cockroach does not have nervous system.
2 the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
3 the head holds a \(1 / 3^{\text {rd }}\) of a nervous system while the rest is situated along the dorsal part of its body
4 the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
Explanation:
B If the head of cockroach is cut offit will still be alive for as long as one weekbecause the head holds a bit of a nervous system while the rest is situated along to ventral part of the body. - This is the reason Cockroach may live for few days even after removal of the head from the body.
183753
Which of the following characteristics incorrect with respect to cockroach?
1 \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal cerci
2 A ring of gastric caecae is present at the junction of midgut and hind gut
3 Hypopharynx lies within the cavity enclosed by the mouth parts
4 In females\(7^{\text {th }}-9^{\text {th }}\) sterna together form a genital pouch
Explanation:
B Point (b) is incorrect because gastric or hepatic caeca are present at the junction of the foregut and midgut. They are ring-shaped 6 to 8 blind tubuleswhich releases digestive juice. - Hypopharynx lies within the cavity enclosed by mouth parts. - In female Cockroachthe \(7^{\text {th }}\) sternum is boat shaped and together with the \(8^{\text {th }}\) and \(9^{\text {th }}\) sterna forms a genital pouch. - \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal Cerci and \(9^{\text {th }}\) sternum only in male Cockroachbears a pair of Chitinous anal style.
NEET-2021
Structural Organization in Animals
183759
Triangular joint in the leg of Periplaneta is
1 Coxa
2 Trochanter
3 Tibia
4 Tarsus
Explanation:
B The parts of the legs of a cockroach are the coxatrochanterfemurtibia and then the tarsus. The coxa is the upper part of the leg. The coxa region helps to connect the leg to the thoracic region of the body. - Then comes the trochanter which acts as the knee of the cockroach. - Femur is the largest region of the leg. Tibia of an insect is slender in comparison to the femur but is generally longer than femur.
TS EAMCET-28.09.2020 Shift-I
Structural Organization in Animals
183763
Identify the incorrect statement about morphology of cockroach.
1 1
2 2
3 3
4 4
Explanation:
C In the case of cockroachesthe fore wings (mesothoracic) are not used for flight as they are thickopaque and leatherythey only cover and protect the hind wings. They are also called tegmina. - A pair of antennae is present in cockroaches. These arise from membranous sockets lying in front of eyes. -Each antenna is made up of segments called podomeres. - Brood or genital pouch contains female gonoporespermathecal pores and collaterial glands.
AP EAMCET-25.09.2020 Shift-I
Structural Organization in Animals
183764
If the head of cockroach is removedit may live for few days because
1 the cockroach does not have nervous system.
2 the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
3 the head holds a \(1 / 3^{\text {rd }}\) of a nervous system while the rest is situated along the dorsal part of its body
4 the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
Explanation:
B If the head of cockroach is cut offit will still be alive for as long as one weekbecause the head holds a bit of a nervous system while the rest is situated along to ventral part of the body. - This is the reason Cockroach may live for few days even after removal of the head from the body.
183753
Which of the following characteristics incorrect with respect to cockroach?
1 \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal cerci
2 A ring of gastric caecae is present at the junction of midgut and hind gut
3 Hypopharynx lies within the cavity enclosed by the mouth parts
4 In females\(7^{\text {th }}-9^{\text {th }}\) sterna together form a genital pouch
Explanation:
B Point (b) is incorrect because gastric or hepatic caeca are present at the junction of the foregut and midgut. They are ring-shaped 6 to 8 blind tubuleswhich releases digestive juice. - Hypopharynx lies within the cavity enclosed by mouth parts. - In female Cockroachthe \(7^{\text {th }}\) sternum is boat shaped and together with the \(8^{\text {th }}\) and \(9^{\text {th }}\) sterna forms a genital pouch. - \(10^{\text {th }}\) abdominal segment in both sexesbears a pair of anal Cerci and \(9^{\text {th }}\) sternum only in male Cockroachbears a pair of Chitinous anal style.
NEET-2021
Structural Organization in Animals
183759
Triangular joint in the leg of Periplaneta is
1 Coxa
2 Trochanter
3 Tibia
4 Tarsus
Explanation:
B The parts of the legs of a cockroach are the coxatrochanterfemurtibia and then the tarsus. The coxa is the upper part of the leg. The coxa region helps to connect the leg to the thoracic region of the body. - Then comes the trochanter which acts as the knee of the cockroach. - Femur is the largest region of the leg. Tibia of an insect is slender in comparison to the femur but is generally longer than femur.
TS EAMCET-28.09.2020 Shift-I
Structural Organization in Animals
183763
Identify the incorrect statement about morphology of cockroach.
1 1
2 2
3 3
4 4
Explanation:
C In the case of cockroachesthe fore wings (mesothoracic) are not used for flight as they are thickopaque and leatherythey only cover and protect the hind wings. They are also called tegmina. - A pair of antennae is present in cockroaches. These arise from membranous sockets lying in front of eyes. -Each antenna is made up of segments called podomeres. - Brood or genital pouch contains female gonoporespermathecal pores and collaterial glands.
AP EAMCET-25.09.2020 Shift-I
Structural Organization in Animals
183764
If the head of cockroach is removedit may live for few days because
1 the cockroach does not have nervous system.
2 the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
3 the head holds a \(1 / 3^{\text {rd }}\) of a nervous system while the rest is situated along the dorsal part of its body
4 the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
Explanation:
B If the head of cockroach is cut offit will still be alive for as long as one weekbecause the head holds a bit of a nervous system while the rest is situated along to ventral part of the body. - This is the reason Cockroach may live for few days even after removal of the head from the body.
