261930
Which of the following is incorrect regarding insect ?
1 Cephalization and unjointed appendages
2 Chitinous exoskeleton and wings
3 Cephalization and complete metamorphosis
4 Well developed sensory organs and haemocoel
Explanation:
A Class Insecta also known as Hexapoda of phylum Arthropoda. - Body is covered by chitinous exoskeleton. - They show cephalization i.e, the ganglia, sensory organ and the mouth get concentrated in the head region forming a CNS - Complete metamorphosis contains 3 transformative stages. - The sensory organs in insects are well developed and they have a circulatory system of open type in which the blood flows through the body cavity directly. - This body cavity is known as the haemocoel.
Rajasthan PMT-1998
Animal kingdom
261934
Common characteristics of mosquitoes, houseflies and cockroaches are :
1 one pair each of wings and halters
2 three pair of legs and one pair of developed wings
3 two pair of legs and two compound eyes
4 compound and simple eyes
Explanation:
B These insects (mosquitoes, houseflies and cockroaches) are the organism which are belonging to the group of Arthropoda. - These organisms have 3 pair of legs and one pair of developed wings. - The body is composed of 3 parts known as head, thorax and abdomen. - They have two antennae in the head region which are the sensors for smell or olfaction. - They have compound pair of eyes which are called as ocelli.
Rajasthan PMT-2011 \\ Haryana PMT-2004
Animal kingdom
261944
Excretory organ of spider is :
1 coxal gland
2 flame cells
3 Malpighian tubule
4 nephridia
Explanation:
A In some Arthropods, the coxal gland is a pair of excretory organs that includes an end sac that is located in the prosoma and is accessible to the environment at the coxae of the walking legs. It is a tubule where the first urine is collected and where secretion and reabsorption may occur. It is present in spiders. - Flame cell - Flame cell/solenocytes are the cheif excretory structure of Platyhelminthes. - Malpighian tubule are excretory organs of insects. These are lying almost freely in haemocoel and open into alimentary canal. - Nephridia are an invertebrate organ that is found in pairs and serves a similar purpose to the kidneys of vertebrates. It eliminates metabolic waste from an animal's body. 557 The development of adult characteristics in a moulting insect is promoted by: (a) thyroxine (b) ecdysone (c) pheromone (d) juvenile hormone Ans. b Exp. B The development of adult characteristics in a moulting insect is promoted by ecdysone. Ecdysone, a steroid hormone released by the prothoracic gland, accelerates insect metamorphosis and controls moulting when it is active.
Uttarakhand-2005
Animal kingdom
261978
Match the following
List I
List II
(A) Green glands
1.
Scolopendra
(B) Amphids and
2.
Respiratory organ phasmids
(C) Ctenidia
3.
Shell protein
(D) Poison claw
4.
Excretory organs
(E) Concholin
5.
Sense organs
The correct match is
1 A - 4, B - 5, C - 2, D - 1, E - 3
2 A - 1, B - 3, C - 4, D - 5, E - 2
3 A - 2, B - 4, C - 5, D - 3, E - 1
4 A - 3, B - 4, C - 5, D - 2, E - 1
Explanation:
A
List I
List II
:---
:---
:---
:---
(A)
Green glands
-
Excretory organs
(B)
Amphids and Phasmid
-
Sense organs
(C)
Ctenidia
-
Respiratory organ.
(D)
Poison Claw
-
Scolopendra
(E)
Concholin
-
Shell protein
592. Bombykol or gyplure is a (a) drug (b) hormone (c) antibiotic (d) pheromone MU-2007 Ans. d Exp. D Bombykol or gyplure is a pheromone. Pheromone are substances that insects and other animals use to communicate. Female silkworm moths use them to draw in males, for example, these chemical signals are sent by insects to either find food or attract partners. For instance, the natural silk moths of the species Bombyx mandarina employ the chemical bombykol.
261930
Which of the following is incorrect regarding insect ?
1 Cephalization and unjointed appendages
2 Chitinous exoskeleton and wings
3 Cephalization and complete metamorphosis
4 Well developed sensory organs and haemocoel
Explanation:
A Class Insecta also known as Hexapoda of phylum Arthropoda. - Body is covered by chitinous exoskeleton. - They show cephalization i.e, the ganglia, sensory organ and the mouth get concentrated in the head region forming a CNS - Complete metamorphosis contains 3 transformative stages. - The sensory organs in insects are well developed and they have a circulatory system of open type in which the blood flows through the body cavity directly. - This body cavity is known as the haemocoel.
Rajasthan PMT-1998
Animal kingdom
261934
Common characteristics of mosquitoes, houseflies and cockroaches are :
1 one pair each of wings and halters
2 three pair of legs and one pair of developed wings
3 two pair of legs and two compound eyes
4 compound and simple eyes
Explanation:
B These insects (mosquitoes, houseflies and cockroaches) are the organism which are belonging to the group of Arthropoda. - These organisms have 3 pair of legs and one pair of developed wings. - The body is composed of 3 parts known as head, thorax and abdomen. - They have two antennae in the head region which are the sensors for smell or olfaction. - They have compound pair of eyes which are called as ocelli.
Rajasthan PMT-2011 \\ Haryana PMT-2004
Animal kingdom
261944
Excretory organ of spider is :
1 coxal gland
2 flame cells
3 Malpighian tubule
4 nephridia
Explanation:
A In some Arthropods, the coxal gland is a pair of excretory organs that includes an end sac that is located in the prosoma and is accessible to the environment at the coxae of the walking legs. It is a tubule where the first urine is collected and where secretion and reabsorption may occur. It is present in spiders. - Flame cell - Flame cell/solenocytes are the cheif excretory structure of Platyhelminthes. - Malpighian tubule are excretory organs of insects. These are lying almost freely in haemocoel and open into alimentary canal. - Nephridia are an invertebrate organ that is found in pairs and serves a similar purpose to the kidneys of vertebrates. It eliminates metabolic waste from an animal's body. 557 The development of adult characteristics in a moulting insect is promoted by: (a) thyroxine (b) ecdysone (c) pheromone (d) juvenile hormone Ans. b Exp. B The development of adult characteristics in a moulting insect is promoted by ecdysone. Ecdysone, a steroid hormone released by the prothoracic gland, accelerates insect metamorphosis and controls moulting when it is active.
Uttarakhand-2005
Animal kingdom
261978
Match the following
List I
List II
(A) Green glands
1.
Scolopendra
(B) Amphids and
2.
Respiratory organ phasmids
(C) Ctenidia
3.
Shell protein
(D) Poison claw
4.
Excretory organs
(E) Concholin
5.
Sense organs
The correct match is
1 A - 4, B - 5, C - 2, D - 1, E - 3
2 A - 1, B - 3, C - 4, D - 5, E - 2
3 A - 2, B - 4, C - 5, D - 3, E - 1
4 A - 3, B - 4, C - 5, D - 2, E - 1
Explanation:
A
List I
List II
:---
:---
:---
:---
(A)
Green glands
-
Excretory organs
(B)
Amphids and Phasmid
-
Sense organs
(C)
Ctenidia
-
Respiratory organ.
(D)
Poison Claw
-
Scolopendra
(E)
Concholin
-
Shell protein
592. Bombykol or gyplure is a (a) drug (b) hormone (c) antibiotic (d) pheromone MU-2007 Ans. d Exp. D Bombykol or gyplure is a pheromone. Pheromone are substances that insects and other animals use to communicate. Female silkworm moths use them to draw in males, for example, these chemical signals are sent by insects to either find food or attract partners. For instance, the natural silk moths of the species Bombyx mandarina employ the chemical bombykol.
261930
Which of the following is incorrect regarding insect ?
1 Cephalization and unjointed appendages
2 Chitinous exoskeleton and wings
3 Cephalization and complete metamorphosis
4 Well developed sensory organs and haemocoel
Explanation:
A Class Insecta also known as Hexapoda of phylum Arthropoda. - Body is covered by chitinous exoskeleton. - They show cephalization i.e, the ganglia, sensory organ and the mouth get concentrated in the head region forming a CNS - Complete metamorphosis contains 3 transformative stages. - The sensory organs in insects are well developed and they have a circulatory system of open type in which the blood flows through the body cavity directly. - This body cavity is known as the haemocoel.
Rajasthan PMT-1998
Animal kingdom
261934
Common characteristics of mosquitoes, houseflies and cockroaches are :
1 one pair each of wings and halters
2 three pair of legs and one pair of developed wings
3 two pair of legs and two compound eyes
4 compound and simple eyes
Explanation:
B These insects (mosquitoes, houseflies and cockroaches) are the organism which are belonging to the group of Arthropoda. - These organisms have 3 pair of legs and one pair of developed wings. - The body is composed of 3 parts known as head, thorax and abdomen. - They have two antennae in the head region which are the sensors for smell or olfaction. - They have compound pair of eyes which are called as ocelli.
Rajasthan PMT-2011 \\ Haryana PMT-2004
Animal kingdom
261944
Excretory organ of spider is :
1 coxal gland
2 flame cells
3 Malpighian tubule
4 nephridia
Explanation:
A In some Arthropods, the coxal gland is a pair of excretory organs that includes an end sac that is located in the prosoma and is accessible to the environment at the coxae of the walking legs. It is a tubule where the first urine is collected and where secretion and reabsorption may occur. It is present in spiders. - Flame cell - Flame cell/solenocytes are the cheif excretory structure of Platyhelminthes. - Malpighian tubule are excretory organs of insects. These are lying almost freely in haemocoel and open into alimentary canal. - Nephridia are an invertebrate organ that is found in pairs and serves a similar purpose to the kidneys of vertebrates. It eliminates metabolic waste from an animal's body. 557 The development of adult characteristics in a moulting insect is promoted by: (a) thyroxine (b) ecdysone (c) pheromone (d) juvenile hormone Ans. b Exp. B The development of adult characteristics in a moulting insect is promoted by ecdysone. Ecdysone, a steroid hormone released by the prothoracic gland, accelerates insect metamorphosis and controls moulting when it is active.
Uttarakhand-2005
Animal kingdom
261978
Match the following
List I
List II
(A) Green glands
1.
Scolopendra
(B) Amphids and
2.
Respiratory organ phasmids
(C) Ctenidia
3.
Shell protein
(D) Poison claw
4.
Excretory organs
(E) Concholin
5.
Sense organs
The correct match is
1 A - 4, B - 5, C - 2, D - 1, E - 3
2 A - 1, B - 3, C - 4, D - 5, E - 2
3 A - 2, B - 4, C - 5, D - 3, E - 1
4 A - 3, B - 4, C - 5, D - 2, E - 1
Explanation:
A
List I
List II
:---
:---
:---
:---
(A)
Green glands
-
Excretory organs
(B)
Amphids and Phasmid
-
Sense organs
(C)
Ctenidia
-
Respiratory organ.
(D)
Poison Claw
-
Scolopendra
(E)
Concholin
-
Shell protein
592. Bombykol or gyplure is a (a) drug (b) hormone (c) antibiotic (d) pheromone MU-2007 Ans. d Exp. D Bombykol or gyplure is a pheromone. Pheromone are substances that insects and other animals use to communicate. Female silkworm moths use them to draw in males, for example, these chemical signals are sent by insects to either find food or attract partners. For instance, the natural silk moths of the species Bombyx mandarina employ the chemical bombykol.
261930
Which of the following is incorrect regarding insect ?
1 Cephalization and unjointed appendages
2 Chitinous exoskeleton and wings
3 Cephalization and complete metamorphosis
4 Well developed sensory organs and haemocoel
Explanation:
A Class Insecta also known as Hexapoda of phylum Arthropoda. - Body is covered by chitinous exoskeleton. - They show cephalization i.e, the ganglia, sensory organ and the mouth get concentrated in the head region forming a CNS - Complete metamorphosis contains 3 transformative stages. - The sensory organs in insects are well developed and they have a circulatory system of open type in which the blood flows through the body cavity directly. - This body cavity is known as the haemocoel.
Rajasthan PMT-1998
Animal kingdom
261934
Common characteristics of mosquitoes, houseflies and cockroaches are :
1 one pair each of wings and halters
2 three pair of legs and one pair of developed wings
3 two pair of legs and two compound eyes
4 compound and simple eyes
Explanation:
B These insects (mosquitoes, houseflies and cockroaches) are the organism which are belonging to the group of Arthropoda. - These organisms have 3 pair of legs and one pair of developed wings. - The body is composed of 3 parts known as head, thorax and abdomen. - They have two antennae in the head region which are the sensors for smell or olfaction. - They have compound pair of eyes which are called as ocelli.
Rajasthan PMT-2011 \\ Haryana PMT-2004
Animal kingdom
261944
Excretory organ of spider is :
1 coxal gland
2 flame cells
3 Malpighian tubule
4 nephridia
Explanation:
A In some Arthropods, the coxal gland is a pair of excretory organs that includes an end sac that is located in the prosoma and is accessible to the environment at the coxae of the walking legs. It is a tubule where the first urine is collected and where secretion and reabsorption may occur. It is present in spiders. - Flame cell - Flame cell/solenocytes are the cheif excretory structure of Platyhelminthes. - Malpighian tubule are excretory organs of insects. These are lying almost freely in haemocoel and open into alimentary canal. - Nephridia are an invertebrate organ that is found in pairs and serves a similar purpose to the kidneys of vertebrates. It eliminates metabolic waste from an animal's body. 557 The development of adult characteristics in a moulting insect is promoted by: (a) thyroxine (b) ecdysone (c) pheromone (d) juvenile hormone Ans. b Exp. B The development of adult characteristics in a moulting insect is promoted by ecdysone. Ecdysone, a steroid hormone released by the prothoracic gland, accelerates insect metamorphosis and controls moulting when it is active.
Uttarakhand-2005
Animal kingdom
261978
Match the following
List I
List II
(A) Green glands
1.
Scolopendra
(B) Amphids and
2.
Respiratory organ phasmids
(C) Ctenidia
3.
Shell protein
(D) Poison claw
4.
Excretory organs
(E) Concholin
5.
Sense organs
The correct match is
1 A - 4, B - 5, C - 2, D - 1, E - 3
2 A - 1, B - 3, C - 4, D - 5, E - 2
3 A - 2, B - 4, C - 5, D - 3, E - 1
4 A - 3, B - 4, C - 5, D - 2, E - 1
Explanation:
A
List I
List II
:---
:---
:---
:---
(A)
Green glands
-
Excretory organs
(B)
Amphids and Phasmid
-
Sense organs
(C)
Ctenidia
-
Respiratory organ.
(D)
Poison Claw
-
Scolopendra
(E)
Concholin
-
Shell protein
592. Bombykol or gyplure is a (a) drug (b) hormone (c) antibiotic (d) pheromone MU-2007 Ans. d Exp. D Bombykol or gyplure is a pheromone. Pheromone are substances that insects and other animals use to communicate. Female silkworm moths use them to draw in males, for example, these chemical signals are sent by insects to either find food or attract partners. For instance, the natural silk moths of the species Bombyx mandarina employ the chemical bombykol.
