Q. No.Assertion (A): In frogs, external fertilization takes place.
Reason (R): Frog is an aquatic amphibian.
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.
Reason (R): Frog is an aquatic amphibian.
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: Frogs | Frogs: Anatomy (Male Reproductive System) |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): Frogs have a short alimentary canal.
Reason (R): They are carnivores.
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.
Reason (R): They are carnivores.
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: Frogs |
87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): Frogs help maintain ecological balance.
Reason (R): The species which maintain ecological balance serve as an important link in the food chain and food web.
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.
Reason (R): The species which maintain ecological balance serve as an important link in the food chain and food web.
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: Frogs |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): Frogs are considered important for mankind.
Reason (R): They eat insects and protect the crops.
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.
Reason (R): They eat insects and protect the crops.
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: Frogs |
93%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): The digits for forelimbs of a frog possess a web.
Reason (R): The webs found in the digits of forelimbs help in swimming.
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.
Reason (R): The webs found in the digits of forelimbs help in swimming.
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: Frogs |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): The alimentary canal of a frog is short.
Reason (R): Frog is carnivorous.
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.
Reason (R): Frog is carnivorous.
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: Frogs |
94%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Regarding frogs:
Statement I: They have the ability to change the colour to hide them from their enemies (camouflage).
Statement II: They undergo summer sleep called as hibernation as well as winter sleep called as aestivation.
1. Only Statement II is correct
2. Only Statement I is correct
3. Both Statement I and Statement II are incorrect.
4. Both Statement I and Statement II are correct.
Statement I: They have the ability to change the colour to hide them from their enemies (camouflage).
Statement II: They undergo summer sleep called as hibernation as well as winter sleep called as aestivation.
1. Only Statement II is correct
2. Only Statement I is correct
3. Both Statement I and Statement II are incorrect.
4. Both Statement I and Statement II are correct.
Subtopic: Frogs |
74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A. | Copulatory pad in male frog | P | Present on 1st digit of forelimbs |
| B. | In hibernation, frog respires | Q | Present on 1st digit of hind limbs |
| C. | Optic lobes in a frog are a part of | R | Through skin |
| D. | Bidder’s canal | S | Through lungs |
| T | Fore brain | ||
| U | Mid brain | ||
| W | Present in female frog’s kidney for the passage of ova | ||
| X | Present in male frog’s kidney for the passage of sperms |
Codes:
| A | B | C | D | |
| 1. | P | R | X | W |
| 2. | P | R | U | X |
| 3. | R | P | T | X |
| 4. | Q | S | T | W |
Subtopic: Frogs |
80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Frogs can protect itself from enemies by
1. Clawed toes
2. Spiny skin
3. Camouflage
4. Sharp teeth
Subtopic: Frogs |
96%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The biological adaptation that allows frogs to obtain water for their survival during conditions of water scarcity is the
1. presence of a modified tongue that acts like a sponge to suck water from damp soils.
2. presence of water channels in the skin by which they absorb water from their surroundings.
3. presence of ciliated esophagus that helps in separating water from ingested particulate matter.
4. selective feeding on plants with a large amount of water that would fulfill the water requirement.
Subtopic: Frogs | Frogs: Morphology |
85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
© 2024 GoodEd Technologies Pvt. Ltd.