Animal Kingdom NEET Worksheet Explained: Important Questions, Concepts, and Exam Patterns

The uploaded PDF is a Class 11 Biology worksheet on the Animal Kingdom, complete with 75 multiple-choice questions and detailed explanations. It covers a wide range of topics from non-chordates to chordates, including classification, body organisation, excretion, circulation, reproduction, and evolutionary features. The worksheet is clearly designed for NEET-level preparation, with questions framed directly from NCERT facts and commonly tested biological concepts.

I am writing about this worksheet because the Animal Kingdom chapter often feels bulky and factual to students, yet it is one of the most scoring chapters in NEET Biology. Worksheets like this help convert static NCERT content into exam-ready knowledge. By analysing the questions and explanations, students can understand which facts matter most, how options are twisted in exams, and where conceptual clarity is required instead of blind memorisation. This article explains only what is present in the uploaded worksheet Animal Kingdom WS.

What This Animal Kingdom Worksheet Covers

The worksheet includes 75 MCQs, each followed by a short explanation. The questions span across:

Basis of classification
Evolutionary relationships
Excretory products and organs
Circulatory system types
Reproductive strategies
Special organs and adaptations

The explanations are concise and aligned with NCERT terminology, making the worksheet ideal for quick revision and self-evaluation.

Evolutionary and Classification-Based Questions

Several questions test evolutionary links and classification logic. For example, the worksheet highlights that mammals evolved from Therapsida, and that the presence of a notochord is the defining feature of chordates.

There are also direct classification questions asking students to identify the correct phylum, class, or order of organisms like lancelet, octopus, crocodile, bat, and platypus. Such questions are common in NEET and require exact recall of NCERT classification tables.

Chordates and Their Key Features

A major portion of the worksheet focuses on chordates. Important concepts covered include:

Cyclostomata having a jawless, circular sucking mouth
Reptiles generally having a three-chambered heart, with crocodile as an exception
Birds and mammals being warm-blooded with four-chambered hearts
Presence of mammary glands as the defining feature of mammals

Questions also test similarities between groups, such as crocodiles, birds, and mammals sharing a four-chambered heart.

Excretion and Nitrogenous Wastes

The worksheet strongly tests types of nitrogenous excretion, which is a favourite NEET area. Examples include:

Ammonotelic animals excreting ammonia
Uricotelic animals like birds and reptiles excreting uric acid
Malpighian tubules as excretory organs in insects
Proboscis gland as the excretory organ in hemichordates

These questions check whether students can correctly link animals with their excretory products and organs.

Download this PDF File: Click Here

Circulatory System and Heart Structure

Multiple questions are based on heart chambers and circulation types. The worksheet explains:

Double circulation as blood passing twice through the heart
Two-chambered heart in fishes like sharks
Three-chambered heart in amphibians and most reptiles
Four-chambered heart in birds, mammals, and crocodiles

Such questions often appear as assertion–reason or matching-type MCQs in NEET.

Reproduction and Development

Reproductive strategies are tested through questions on:

External fertilisation in amphibians
Self-fertilisation in liver fluke
Oviparous mammals like platypus
Larval forms such as tadpole in urochordates

These questions require conceptual clarity about life cycles rather than rote learning.

Non-Chordates and Their Identifying Features

The worksheet includes strong coverage of non-chordate phyla:

Porifera with cellular level of organisation
Coelenterata being diploblastic
Platyhelminthes as acoelomates
Annelida showing metamerism
Arthropoda having the highest number of species
Mollusca being the second-largest phylum

Special structures like radula in molluscs and comb plates in ctenophores are also tested.

Ecology, Conservation, and Applied Biology

Some questions move beyond pure classification and test applied knowledge, such as:

Project Tiger being launched in 1973
Giant panda facing extinction due to low reproductive rate
Lac being a secretion of lac insects
Tasar silk being produced by Antheraea species

These questions show how Animal Kingdom links with ecology and human use of animals.

What This Worksheet Teaches NEET Aspirants

From this worksheet, it is clear that:

Animal Kingdom questions are NCERT-driven and factual
Small details like exceptions are extremely important
Classification tables must be revised repeatedly
Understanding “why” helps retain facts better than memorising lists

Practising such worksheets improves speed and accuracy in Biology.

Class 11 Relations and Functions Answer Worksheet: Concept Coverage, Question Pattern and Study Value

This mathematics worksheet on Relations and Functions, prepared for Class 11 CBSE students, is mainly meant for board exam preparation and for building strong fundamentals for higher mathematics. It contains 75 multiple-choice questions, covering relations, types of relations, functions, domain and range, inverse relations, and application-based problems involving logarithmic, trigonometric, and modulus functions. The questions are framed directly from NCERT concepts and closely reflect the style of questions asked in school examinations Relations and Functions WS 1.

I am writing about this worksheet because Relations and Functions is often the chapter where students feel they understand everything, but still lose marks due to small conceptual mistakes. Confusion between relations and functions, errors in domain and range, and misinterpretation of properties like symmetry or transitivity are very common. A worksheet like this helps students convert NCERT theory into exam-oriented thinking. By analysing the questions carefully, one can clearly see which concepts are repeatedly tested and how definitions are turned into scoring MCQs.

Structure of the Relations and Functions Worksheet

The worksheet consists of 75 MCQs, with each question carrying one mark. The questions are arranged in a progressive manner, starting from basic definitions and moving towards application-based and reasoning-oriented problems. While many questions look direct, the answer options are closely framed, which tests accuracy and conceptual clarity rather than guesswork.

The overall difficulty level ranges from moderate to slightly challenging, making it suitable for both revision and self-assessment.

Relations and Their Mathematical Properties

A significant number of questions focus on relations and their properties. Students are tested on identifying whether a relation is:

Reflexive
Symmetric
Transitive
An equivalence relation

Examples involving sets of numbers, geometric objects, and real-life-style relations are used to check whether students truly understand these properties instead of memorising definitions Relations and Functions WS 1.

Cartesian Products and Set-Based Relations

The worksheet includes several questions based on Cartesian products. These questions test whether students can:

Identify valid ordered pairs
Determine the domain and range of a relation
Count the number of possible relations between two finite sets

Such questions reinforce the idea that every relation is a subset of a Cartesian product, which is a core concept in this chapter.

Functions and Their Classification

Functions form the backbone of this worksheet. Many questions require students to decide whether a given relation is a function and further classify it as:

One-one
Onto
Both one-one and onto
Neither one-one nor onto

There are also numerical questions asking for the total number of functions possible between two sets, which are frequently asked in CBSE exams.

Download this Relations and Functions Answer PDF File: Click Here

Domain and Range-Based Questions

Domain and range are among the most heavily tested topics in this worksheet. Questions involve functions containing:

Logarithmic expressions
Square roots
Rational functions
Modulus functions
Trigonometric and inverse trigonometric functions

Students must carefully apply conditions like non-zero denominators, positive arguments for logarithms, and valid ranges for inverse trigonometric functions. These questions highlight common error areas where students tend to lose easy marks.

Modulus and Greatest Integer Function Applications

Several MCQs are based on modulus and greatest integer functions. These problems require interval-wise analysis and careful logical thinking rather than direct substitution. Such questions are important because they strengthen analytical skills needed for later chapters in calculus.

Composite and Inverse Functions

The worksheet also includes questions on composite functions and inverse relations. These questions test whether students understand function operations clearly and can apply them step by step. This area is particularly important for students aiming to build a solid foundation for Class 12 mathematics.

Trigonometric and Logarithmic Reasoning Questions

Some questions combine trigonometric identities with logarithmic expressions. These are slightly tricky and demand proper step-by-step reasoning. They test attention to detail and conceptual clarity, making them useful for higher-level problem-solving.

What Students Can Learn from This Worksheet

From analysing this worksheet, a few clear points emerge:

NCERT concepts form the base of most questions
Domain and range need careful handling
Properties of relations must be logically understood
Options are closely framed, so careless reading leads to mistakes
Regular practice improves confidence and speed

Overall, this Relations and Functions worksheet is a strong practice resource for Class 11 students. It closely matches CBSE exam expectations and helps build a solid conceptual foundation that will be crucial for advanced topics in mathematics.