Assertion (A): The young one of cockroach does not look like adult cockroach.
Reason (R): The mouthparts of young cockroach are not well developed like adult cockroach.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Assertion (A): Cockroaches show sexual dimorphism.
Reason (R): Male and female cockroaches can be distinguished based on morphology.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Cockroach:Male Reproductive System | Cockroach: Female Reproductive System |
82%
From NCERT
Other Reason
Add Note
Please attempt this question first.
Hints
Please attempt this question first.
Upgrade Your Plan
Upgrade now and unlock your full question bank experience with daily practice.
Assertion (A) : Eggs of cockroaches are encased in oothecae.
Reason (R) : Ootheca is formed by the collaterial gland of female cockroach.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Cockroach: Female Reproductive System |
65%
From NCERT
Other Reason
Add Note
Please attempt this question first.
Hints
Please attempt this question first.
Upgrade Your Plan
Upgrade now and unlock your full question bank experience with daily practice.
Assertion (A): The vision of cockroaches is called mosaic vision.
Reason (R): They have several ommatidia.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Cockroach: Compound Eye |
From NCERT
Other Reason
Add Note
Please attempt this question first.
Hints
Please attempt this question first.
Upgrade Your Plan
Upgrade now and unlock your full question bank experience with daily practice.
Assertion (A): Cockroaches are treated as pests.
Reason (R): They spoil food and contaminate it with their smelly excreta.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Cockroach: Excretory System |
89%
From NCERT
Other Reason
Add Note
Please attempt this question first.
Hints
Please attempt this question first.
Upgrade Your Plan
Upgrade now and unlock your full question bank experience with daily practice.
Which of the following is the characteristic
feature of cockroach regarding sexual dimorphism?
1. Presence of anal cerci
2. Dark brown body colour and anal cerci
3. Presence of anal styles
4. Presence of sclerites
Subtopic: Cockroach:Male Reproductive System |
73%
From NCERT
NEET - 2023
Other Reason
Add Note
Please attempt this question first.
Hints
Please attempt this question first.
Upgrade Your Plan
Upgrade now and unlock your full question bank experience with daily practice.