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Structural Organisation in Animals (Frog)

ICSE · Class 11 · Biology

Most important questions from Structural Organisation in Animals (Frog) for ICSE Class 11 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.

90 questions40 flashcards5 concepts

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A dorsal view diagram of a frog, highlighting its body divisions (head, trunk), prominent eyes with nictitating membrane, tympanum, and webbed hindlimbs.
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90 Questions·
mcqmultiple choice

Sample Questions

1mcq

To which class does the frog (Rana tigrina) belong?

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Amphibia

Rana tigrina belongs to Class Amphibia. Frogs are amphibians — they can live both on land and in freshwater. They belong to Order Anura (without tail).

2mcq

What is the scientific name of the Indian bull frog?

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Rana tigrina

The Indian bull frog is scientifically named Rana tigrina. It is the most common, largest, and most noisy species of frog found in India.

3mcq

What is 'aestivation' in frogs?

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Summer sleep to escape heat

Aestivation (also called summer sleep) is a dormant state that frogs enter during peak summer to escape extreme heat. They take shelter in deep burrows. Hibernation is the corresponding winter sleep.

4mcq

How many chambers does a frog's heart have?

Show answer

3

A frog's heart has 3 chambers: 2 auricles (atria) + 1 ventricle. This is unlike the mammalian heart which has 4 chambers (2 auricles + 2 ventricles). The frog's single ventricle leads to mixing of oxygenated and deoxygenated blood.

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Frequently Asked Questions

What are the important topics in Structural Organisation in Animals (Frog) for ICSE Class 11 Biology?
Key topics in Structural Organisation in Animals (Frog) include Structural Organisation in Animals (Frog) - Complete Overview, Complete Classification and Overview of Frog (Rana tigrina), Mind map showing the major external features of a frog's body and their locations.. These are the concepts ICSE Class 11 examiners draw on most — study them first, then practise related questions.
How to score full marks in Structural Organisation in Animals (Frog) — ICSE Class 11 Biology?
Understand the core concepts first, then work through the 90 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Structural Organisation in Animals (Frog)?
There are 90 practice questions available for Structural Organisation in Animals (Frog). These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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