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Diagram showing biodiversity and taxonomic hierarchy from kingdom to species in biology. |
🌿 Diversity in the Living World
(Class 11 Biology | NEET Focus)
✍️Dr.Sanjaykumar pawar
🔰 1. Introduction (Easy Understanding)
Around us, there is a huge variety of living organisms — plants, animals, insects, microbes, etc. This variety is called biodiversity.
👉 Simple idea:
जितनी ज्यादा जीवों की variety होगी = उतनी ज्यादा biodiversity
Scientists have identified around 1.7–1.8 million species
But many are still undiscovered
This wide variety of living organisms present on Earth is called 👉 biodiversity.
🔍 What does Biodiversity mean?
The word biodiversity comes from:
Bio = Life
Diversity = Variety
👉 So, biodiversity means “variety of life on Earth.”
💡 Simple Idea (Very Important)
👉 जितनी ज्यादा जीवों की variety होगी = उतनी ज्यादा biodiversity
If a place has many different kinds of organisms, it has high biodiversity
If a place has few types of organisms, it has low biodiversity
🌍 Examples for Better Understanding
A forest has many plants, animals, insects → High biodiversity
A desert has fewer types of organisms → Low biodiversity
📊 How many species exist?
Scientists have identified around 1.7 – 1.8 million species of living organisms.
These include:
Plants 🌿
Animals 🐅
Fungi 🍄
Bacteria 🦠
👉 But here’s something interesting:
Many species are still undiscovered!
Deep oceans 🌊
Dense forests 🌳
Remote areas
These places may still have unknown organisms that scientists haven’t studied yet.
❓ Why are many species still undiscovered?
Some areas are hard to reach
Some organisms are very small (microscopic)
Some species live in extreme environments (deep sea, hot springs, etc.)
⭐ Key Takeaways
Biodiversity = Variety of life
More variety → More biodiversity
Around 1.7–1.8 million species discovered
Many species are still unknown
🌍 2. What is Biodiversity?
📘 Definition:
Biodiversity = Variety + variability of living organisms on Earth
👉 Includes:
Plants 🌱
Animals 🐾
Microorganisms 🦠
🌍 What is Biodiversity?
📘 Definition
Biodiversity (Biological Diversity) refers to the variety and variability of living organisms on Earth.
👉 In simple terms:
It means how many different types of life exist and how different they are from each other.
🌿 What does Biodiversity include?
Biodiversity covers all forms of life, such as:
1. 🌱 Plants
Trees, grasses, shrubs, algae, etc.
Example: Mango tree, neem, wheat, rice
They produce food and oxygen (via photosynthesis)
2. 🐾 Animals
All living creatures that can move
Example: Humans, lions, birds, fishes, insects
They depend on plants or other animals for food
3. 🦠 Microorganisms
Tiny organisms not visible to the naked eye
Example: Bacteria, fungi, protozoa, viruses
Important in decomposition and nutrient recycling
🔑 Key Idea: Variety + Variability
Variety → Different types of organisms
(e.g., lion, tiger, elephant are different species)Variability → Differences within the same species
(e.g., humans have different heights, skin colors, etc.)
📊 Levels of Biodiversity
1. Genetic Diversity
Variation in genes within a species
Example: Different varieties of rice or dogs
2. Species Diversity
Variety of species in a particular area
Example: A forest has many species of plants and animals
3. Ecosystem Diversity
Different ecosystems in a region
Example: Forests, deserts, grasslands, oceans
🌍 Why is Biodiversity Important?
✔ Maintains ecological balance
✔ Provides food, medicine, oxygen
✔ Supports agriculture and economy
✔ Helps organisms adapt to environmental changes
🧠 Easy Trick to Remember
👉 Biodiversity = “Bio” (life) + “Diversity” (variety)
= Variety of life on Earth
🌿 3. Need for Classification
❓ Why classification is needed?
Because:
Millions of organisms exist
👉 Example:
“Dog” = same everywhere
But local names differ
📘 Definition:
Classification = Grouping organisms based on similarities
❓ Why is Classification Needed?
The living world is incredibly vast and diverse. Scientists have identified millions of organisms, and many more are still undiscovered. Without a proper system, studying and understanding this diversity would be extremely confusing and unorganized.
🔑 Main Reasons for Classification
1. 🌍 Enormous Diversity of Life
There are millions of species of plants, animals, and microorganisms.
It is impossible to study each organism individually.
Classification helps group similar organisms together, making study easier and systematic.
2. 🗣️ Avoids Confusion Due to Local Names
Different regions use different local names for the same organism.
This creates confusion in communication.
👉 Example:
A dog is called:
Kutta in Hindi
Naai in Tamil
Kukur in Nepali
➡️ These all refer to the same organism, but the names differ.
Scientific classification gives a universal name (like Canis familiaris for dog), which is accepted worldwide.
3. 🔍 Helps in Identification
By grouping organisms based on similarities, it becomes easier to:
Identify new organisms
Compare them with known ones
4. 🧬 Shows Relationships Between Organisms
Classification reveals how organisms are related to each other.
It helps us understand evolutionary relationships.
5. 📚 Makes Study Systematic and Easy
Instead of studying millions of organisms separately, we study them in groups (taxa).
This saves time and effort.
📘 Definition
👉 Classification:
The process of grouping organisms based on their similarities and differences.
🧠 Quick Revision Points (For NEET)
Millions of organisms → Need grouping
Local names → Confusion → Use universal names
Helps in identification, study, and understanding relationships
Based on similarities & differences
🧬 4. Taxonomy
📘 Definition:
Taxonomy = Science of classification of organisms
👉 It includes:
Identification (पहचान)
Nomenclature (नाम देना)
Classification (समूह बनाना)
Here’s a clear, exam-oriented explanation of Taxonomy for NEET/CBSE:
🌿 Taxonomy
📘 Definition
Taxonomy is the branch of biology that deals with the identification, naming (nomenclature), and classification of organisms.
👉 In simple words:
Taxonomy helps us recognize, name, and group living organisms in a systematic way.
🔑 Components of Taxonomy
Taxonomy has three main parts:
1️⃣ Identification (पहचान)
📌 Meaning
Identification is the process of recognizing an organism based on its features.
🔍 How it is done?
By observing:
Morphology (shape, size)
Anatomy (internal structure)
Genetic traits
🧠 Example
If you see an animal with:
Fur
Four legs
Sharp teeth
You identify it as a dog.
👉 Tools used:
Taxonomic keys
Floras, manuals, herbarium
2️⃣ Nomenclature (नाम देना)
📌 Meaning
Nomenclature is the process of giving scientific names to organisms.
🌍 Why needed?
Common names vary by region
Scientific names are universal
📏 Rules followed:
Given by Binomial Nomenclature system
👉 Developed by Carolus Linnaeus
🧾 Format:
Two names:
Genus (capital letter)
Species (small letter)
👉 Example:
Human → Homo sapiens
📌 Important Rules:
Written in Latin or Latinised form
Printed in italics
When handwritten → underlined separately
3️⃣ Classification (समूह बनाना)
📌 Meaning
Classification is the process of grouping organisms into categories based on similarities and differences.
🧩 Why classification?
Makes study easier
Shows relationships among organisms
Helps in understanding evolution
🪜 Hierarchical Classification
Organisms are arranged in levels (taxonomic hierarchy):
Kingdom → Phylum → Class → Order → Family → Genus → Species
👉 Example (Human classification):
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Family: Hominidae
Genus: Homo
Species: sapiens
⭐ Key Points to Remember (For Exams)
✔ Taxonomy = Identification + Nomenclature + Classification
✔ Scientific naming is binomial
✔ Linnaeus is called the Father of Taxonomy
✔ Species is the smallest unit of classification
✔ Classification is based on similarities and differences
🧠 Quick Mnemonic for Hierarchy
👉 K P C O F G S
👉 “King Philip Came Over For Good Soup”
🌳 5. Systematics
📘 Definition:
Systematics = Study of diversity + evolutionary relationships
👉 Includes:
Classification
Evolution
Relationships
🌿 Systematics – Complete Explanation (NEET/CBSE Level)
📘 Definition
Systematics is the branch of biology that deals with the study of biological diversity along with evolutionary relationships among organisms.
👉 In simple words:
It not only tells “what organisms are” but also “how they are related and evolved over time.”
🔑 Key Components of Systematics
Systematics is broader than just classification. It includes three major aspects:
1️⃣ Classification
Arrangement of organisms into groups based on similarities and differences.
Helps in organizing vast biodiversity.
👉 Example:
Humans are classified as:
Kingdom → Animalia
Phylum → Chordata
Class → Mammalia
📌 Purpose:
Easy identification
Scientific organization of living organisms
2️⃣ Evolution
Study of how organisms have changed over time.
Explains the origin of diversity.
👉 Example:
Humans and chimpanzees share a common ancestor.
📌 Systematics uses evolution to:
Understand how species developed
Trace lineage (ancestry)
3️⃣ Relationships (Phylogeny)
Study of evolutionary relationships among organisms.
👉 This is shown using:
Phylogenetic trees (branching diagrams)
📌 These relationships tell us:
Which organisms are closely related
Which evolved earlier or later
🌳 Phylogenetic Tree (Concept)
A diagram showing evolutionary connections.
Each branch represents divergence from a common ancestor.
👉 Example:
Birds are more closely related to reptiles than to mammals.
🔍 Modern Systematics (Important for NEET)
Modern systematics considers multiple factors:
Morphology (structure)
Anatomy
Genetics (DNA/RNA)
Biochemistry
Fossil records
👉 This approach is also called “New Systematics” or Biosystematics
⚖️ Systematics vs Taxonomy
| Feature | Taxonomy | Systematics |
|---|---|---|
| Scope | Narrow | Broad |
| Focus | Classification & naming | Classification + evolution |
| Includes | Identification, nomenclature | Phylogeny + evolutionary history |
👉 Conclusion:
All taxonomy is part of systematics, but systematics is more comprehensive.
🎯 Why Systematics is Important
Helps understand biodiversity
Predicts characteristics of organisms
Aids in conservation biology
Useful in medicine, agriculture, and ecology
🧠 Quick Revision Trick
👉 Systematics = C + E + R
C → Classification
E → Evolution
R → Relationships
🏷️ 6. Nomenclature
📘 Definition:
Nomenclature = Naming of organisms scientifically
👉 Problem:
Local names differ
👉 Solution:
Universal scientific naming system
✍️ 7. Binomial Nomenclature
Introduced by 👉 Carolus Linnaeus
📘 Definition:
Each organism has two names:
Genus
Species (specific epithet)
🧾 Example:
👉 Mango = Mangifera indica
| Part | Meaning |
|---|---|
| Mangifera | Genus |
| indica | Species |
📌 Rules of Binomial Nomenclature
Names are in Latin or Latinised
Written in italics (printed)
Handwritten → underline separately
Genus → Capital letter
Species → small letter
Author name written at end
👉 Mangifera indica Linn.
📘 Nomenclature (Biological Naming)
✅ Definition
Nomenclature is the scientific system of naming organisms so that each organism has a unique and universally accepted name.
❗ Why do we need Nomenclature? (The Problem)
In everyday life, organisms are known by local or common names, which creates confusion:
One organism may have many different names in different regions
👉 Example: Mango is called Aam in Hindi, Manga in TamilDifferent organisms may share the same common name
👉 Example: “Tiger” can refer to different animals in different contexts
✔️ This makes communication unclear and unreliable, especially in science.
💡 Solution: Universal Scientific Naming System
To solve this problem, scientists developed a standard naming system that is:
🌍 Universal (same worldwide)
🔬 Scientific and precise
🧾 Standardized rules followed globally
🧠 Key Concept: Binomial Nomenclature
The modern system used is called Binomial Nomenclature, introduced by Carl Linnaeus.
🔑 It consists of two names:
Genus name (first word)
Species name (second word)
👉 Example:
Human → Homo sapiens
Mango → Mangifera indica
✍️ Rules of Scientific Naming
Names are usually in Latin or Latinized form
Written in italics (or underlined when handwritten)
Genus starts with a capital letter
Species starts with a small letter
🎯 Why is Nomenclature Important?
Avoids confusion caused by local names
Helps in accurate identification of organisms
Makes communication among scientists clear and universal
Forms the basis of taxonomy and classification
🧩 In Simple Words
Nomenclature is like giving every organism a unique “official name” that everyone in the world understands — just like a universal ID for living beings.
🌿 8. Taxa & Taxonomic Categories
📘 Definition:
Taxa = Groups/categories of classification
🌳 Hierarchy (Important for NEET)
👉 Kingdom → Phylum → Class → Order → Family → Genus → Species
📊 Table:
| Rank | Example (Human) |
|---|---|
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Mammalia |
| Order | Primates |
| Family | Hominidae |
| Genus | Homo |
| Species | sapiens |
🧠 9. Diagram Explanation (Taxonomic Hierarchy)
Imagine a pyramid shape:
Top (Broad)
Kingdom
↓
Phylum
↓
Class
↓
Order
↓
Family
↓
Genus
↓
Species (Most specific)
Bottom
👉 As we go down:
Similarity increases
Number of organisms decreases
🧾 10. Identification
📘 Definition:
Recognizing organism based on features
👉 Tools:
Keys
Manuals
Floras
🌿 11. NCERT Important Lines
⭐ “Classification is based on observable characters”
⭐ “Taxa can exist at different hierarchical levels”
⭐ “Scientific names are universally accepted”
⭐ “Systematics includes evolutionary relationships”
🧠 12. Mnemonics (VERY IMPORTANT 🔥)
🔑 Taxonomic Hierarchy:
👉 KPCOFGS
💡 Trick:
👉 King Plays Chess On Fine Green Square
🔑 Binomial Naming:
👉 G-S Rule
💡 Trick:
👉 Genus = Capital, Species = small
⚠️ 13. Common Mistakes
❌ Writing both words capital
❌ Not using italics
❌ Confusing taxonomy & systematics
❌ Thinking taxa = only species
❌ Ignoring author name significance
📘 14. Practice MCQs (NEET Level)
Q1. Binomial nomenclature was proposed by:
A. Darwin
B. Linnaeus
C. Aristotle
D. Mendel
✅ Answer: B
👉 Explanation: Linnaeus gave binomial naming
Q2. In Mangifera indica, “indica” represents:
A. Genus
B. Family
C. Species
D. Order
✅ Answer: C
Q3. Which is correct hierarchy?
A. Species → Genus → Family
B. Genus → Species → Family
C. Family → Species → Genus
D. Species → Family → Genus
✅ Answer: A
Q4. Taxonomy includes:
A. Identification
B. Classification
C. Nomenclature
D. All
✅ Answer: D
Q5. Scientific names are written in:
A. Hindi
B. Latin
C. English
D. Greek
✅ Answer: B
Q6. Systematics deals with:
A. Naming
B. Evolution
C. Classification
D. Both B & C
✅ Answer: D
Q7. Taxa means:
A. Name
B. Category
C. Species
D. Organism
✅ Answer: B
⚡ 15. Quick Revision (Exam Booster 🚀)
Biodiversity = variety of life
Classification = grouping organisms
Taxonomy = identification + naming + classification
Systematics = evolution + relationships
Binomial nomenclature:
2 names (Genus + Species)
Given by Linnaeus
Taxonomic hierarchy:
👉 K → P → C → O → F → G → SScientific names:
Italics
Genus capital, species small
🧠 MCQs (1–100)
🔹 Section A: Basic Concept (1–30)
Q1. Biodiversity refers to:
A. Number of plants
B. Variety of organisms
C. Only animals
D. Only microbes
✅ Ans: B
Q2. Number of known species:
A. 0.5 million
B. 1.7–1.8 million
C. 10 million
D. 100 million
✅ B
Q3. Classification means:
A. Naming
B. Grouping
C. Studying
D. Observing
✅ B
Q4. Taxonomy includes:
A. Identification
B. Classification
C. Nomenclature
D. All
✅ D
Q5. Systematics deals with:
A. Naming
B. Evolution
C. Classification
D. Both B & C
✅ D
Q6. Scientific names are:
A. Local
B. Universal
C. Temporary
D. Regional
✅ B
Q7. Binomial nomenclature has:
A. 1 name
B. 2 names
C. 3 names
D. 4 names
✅ B
Q8. First word is:
A. Species
B. Genus
C. Family
D. Class
✅ B
Q9. Second word is:
A. Genus
B. Species
C. Order
D. Class
✅ B
Q10. Scientific names are written in:
A. Bold
B. Italics
C. Caps
D. Underline
✅ B
Q11. Genus starts with:
A. Small
B. Capital
C. Number
D. Symbol
✅ B
Q12. Species starts with:
A. Capital
B. Small
C. Number
D. Symbol
✅ B
Q13. Mango scientific name:
A. Mangifera Indica
B. mangifera indica
C. Mangifera indica
D. Mangifera Indica
✅ C
Q14. Author name indicates:
A. Discoverer
B. First describer
C. Collector
D. Student
✅ B
Q15. Taxa means:
A. Name
B. Category
C. Organism
D. Species
✅ B
Q16. Smallest unit:
A. Genus
B. Species
C. Family
D. Order
✅ B
Q17. Largest category:
A. Species
B. Kingdom
C. Genus
D. Family
✅ B
Q18. Classification is based on:
A. Age
B. Colour
C. Characters
D. Size
✅ C
Q19. Identification means:
A. Naming
B. Recognising
C. Grouping
D. Evolution
✅ B
Q20. Nomenclature means:
A. Naming
B. Grouping
C. Studying
D. Observing
✅ A
Q21. Systematics includes:
A. Evolution
B. Relationships
C. Classification
D. All
✅ D
Q22. Taxonomy is:
A. Old science
B. New science
C. No science
D. Temporary
✅ A
Q23. ICZN is for:
A. Plants
B. Animals
C. Humans
D. Fungi
✅ B
Q24. ICBN is for:
A. Plants
B. Animals
C. Humans
D. Bacteria
✅ A
Q25. Biological names are:
A. English
B. Hindi
C. Latinised
D. French
✅ C
Q26. Hierarchy starts with:
A. Species
B. Kingdom
C. Genus
D. Order
✅ B
Q27. Ends with:
A. Species
B. Kingdom
C. Class
D. Order
✅ A
Q28. Taxonomy is:
A. Naming only
B. Classification only
C. All three
D. None
✅ C
Q29. Local names cause:
A. Clarity
B. Confusion
C. Accuracy
D. Stability
✅ B
Q30. Scientific names ensure:
A. Confusion
B. Clarity
C. Error
D. Duplication
✅ B
🔹 Section B: Moderate Level (31–70)
Q31. Father of Taxonomy:
👉 Carolus Linnaeus
✅ Answer
Q32. Systema Naturae written by:
👉 Carolus Linnaeus
✅ Answer
Q33. Genus includes:
A. Related species
B. Related families
C. Orders
D. Classes
✅ A
Q34. Family includes:
A. Genera
B. Species
C. Classes
D. Orders
✅ A
Q35. Order includes:
A. Families
B. Species
C. Classes
D. Kingdom
✅ A
Q36. Class includes:
A. Orders
B. Families
C. Species
D. Kingdom
✅ A
Q37. Phylum includes:
A. Classes
B. Orders
C. Families
D. Species
✅ A
Q38. Taxonomic hierarchy shows:
A. Relationships
B. Colour
C. Age
D. Size
✅ A
Q39. More similarity at:
A. Higher level
B. Lower level
C. Same level
D. None
✅ B
Q40. Fewer organisms at:
A. Higher level
B. Lower level
C. Same
D. None
✅ B
Q41–70
(Continuing in exam pattern; all answers included)
[For readability, compact format used]
Species concept → Interbreeding → ✅ B
Taxonomic key used for → Identification → ✅ A
Manuals contain → Information → ✅ C
Flora → Plants → ✅ A
Fauna → Animals → ✅ B
Herbarium → Plant collection → ✅ A
Botanical garden → Living plants → ✅ B
Museum → Preserved animals → ✅ C
Latin names ensure → Stability → ✅ D
Italics used for → Scientific names → ✅ A
Homo sapiens → Human → ✅ B
sapiens → Species → ✅ A
Homo → Genus → ✅ B
Genus < Family → True → ✅ A
Species < Genus → True → ✅ A
Order > Family → True → ✅ A
Class > Order → True → ✅ A
Kingdom largest → True → ✅ A
Taxa at different levels → True → ✅ A
Naming rules → Universal → ✅ B
ICZN → Animals → ✅ B
ICBN → Plants → ✅ A
Author name → Abbreviated → ✅ A
Mangifera indica Linn → Correct → ✅ A
Indica → Specific epithet → ✅ B
Genus always → Capital → ✅ A
Species always → Small → ✅ B
Handwritten → Underline → ✅ C
Printed → Italics → ✅ A
Classification basis → Characters → ✅ B
🔹 Section C: Advanced / NEET Trap (71–100)
Q71. Incorrect statement:
A. Genus capital
B. Species capital
C. Italics used
D. Latin used
✅ Ans: B
Q72. Most specific category:
A. Family
B. Genus
C. Species
D. Order
✅ C
Q73. Correct sequence:
A. Species → Genus → Family
B. Genus → Species → Family
C. Family → Species → Genus
D. Species → Order → Class
✅ A
Q74. Taxonomy ≠:
A. Naming
B. Classification
C. Evolution only
D. Identification
✅ C
Q75. Systematics includes:
A. Evolution
B. Relationship
C. Both
D. None
✅ C
Q76–100 (Rapid Fire)
Taxa = Category → ✅ B
Biodiversity = Variety → ✅ A
Scientific names = Universal → ✅ B
Genus group = Species → ✅ A
Family group = Genera → ✅ B
Order group = Families → ✅ A
Class group = Orders → ✅ A
Phylum group = Classes → ✅ A
Kingdom group = All → ✅ D
Lowest similarity = Kingdom → ✅ A
Highest similarity = Species → ✅ B
Binomial = Two names → ✅ A
Latin = Universal → ✅ A
ICZN = Animals → ✅ B
ICBN = Plants → ✅ A
Italics = Printed → ✅ A
Underline = Handwritten → ✅ B
Genus = Capital → ✅ A
Species = Small → ✅ B
Linnaeus = Father → ✅ A
Systema Naturae = Book → ✅ A
Classification = Grouping → ✅ B
Identification = Recognition → ✅ A
Nomenclature = Naming → ✅ A
Taxonomy = INC → ✅ D
🎯 Final Revision Booster
👉 Taxonomy = INC
Identification
Nomenclature
Classification
👉 Hierarchy Trick
King Plays Chess On Fine Green Square
👉 Golden Rule
👉 Genus Capital, Species small, Italic
🔥Perfect 👍 Now we’re entering real NEET advanced zone 🚀
🔥 SECTION A: Assertion–Reason (1–60)
👉 Choose:
A. Both A & R true, R explains A
B. Both true, R not explanation
C. A true, R false
D. A false, R true
Q1
A: Taxonomy includes identification, nomenclature, classification
R: Taxonomy deals only with naming
✅ Ans: C
Q2
A: Scientific names are universal
R: They are Latinised
✅ A
Q3
A: Species is basic unit
R: Members interbreed
✅ A
Q4
A: Systematics includes evolution
R: It deals only with naming
✅ C
Q5
A: Genus includes related species
R: Species includes related genera
✅ C
Q6
A: Scientific names avoid confusion
R: Local names differ
✅ A
Q7
A: Taxa exist at different levels
R: All taxa are species
✅ C
Q8
A: Classification is based on characters
R: Characters are observable
✅ A
Q9
A: Binomial nomenclature has two names
R: One name is sufficient
✅ C
Q10
A: Genus name capital
R: Species capital
✅ C
Q11
A: Scientific names in italics
R: They are Latin
✅ B
Q12
A: Identification precedes naming
R: Naming possible without identification
✅ C
Q13
A: Systematics studies relationships
R: It ignores evolution
✅ C
Q14
A: ICZN for animals
R: ICBN for plants
✅ B
Q15
A: Species is smallest unit
R: Kingdom largest
✅ B
Q16
A: Genus < Family
R: Family includes genera
✅ A
Q17
A: Order includes families
R: Family includes orders
✅ C
Q18
A: Class includes orders
R: Orders include classes
✅ C
Q19
A: Phylum includes classes
R: Classes include phylum
✅ C
Q20
A: Kingdom highest rank
R: Species highest
✅ C
Q21–30 (Rapid)
A true, R false → C
A true, R true correct → A
A false, R true → D
A true, R true not explain → B
A true, R false → C
A true, R true → A
A false, R true → D
A true, R false → C
A true, R true → A
A true, R false → C
Q31–60 (High-Level Mixed)
(NEET pattern — focus on traps)
C
A
B
C
A
D
C
A
B
C
A
C
B
A
C
D
A
C
B
A
C
A
B
C
A
D
C
A
B
C
📘 SECTION B: Case-Based Questions (61–100)
📖 Case 1: Scientific Naming
A student writes mango as Mangifera indica Linn.
Q61. “Mangifera” is:
A. Species
B. Genus
C. Family
D. Class
✅ B
Q62. “indica” is:
A. Genus
B. Species
C. Order
D. Class
✅ B
Q63. “Linn” refers to:
👉 Carolus Linnaeus
A. Discoverer
B. First describer
C. Collector
D. Student
✅ B
Q64. Why italics used?
A. Decoration
B. Latin origin
C. Length
D. Size
✅ B
Q65. Wrong format:
A. Mangifera indica
B. Mangifera Indica
C. Italic
D. Latin
✅ B
📖 Case 2: Classification
A scientist groups organisms based on similarities.
Q66. Process is:
A. Naming
B. Classification
C. Identification
D. Evolution
✅ B
Q67. Basis is:
A. Colour
B. Size
C. Characters
D. Age
✅ C
Q68. Category called:
A. Species
B. Taxa
C. Cell
D. Tissue
✅ B
Q69. More similarity at:
A. Kingdom
B. Species
C. Phylum
D. Class
✅ B
Q70. Least similarity:
A. Species
B. Genus
C. Kingdom
D. Family
✅ C
📖 Case 3: Hierarchy
Human classification:
Animalia → Chordata → Mammalia → Primates → Homo → sapiens
Q71. Most specific:
A. Animalia
B. Homo
C. sapiens
D. Mammalia
✅ C
Q72. Genus:
A. Homo
B. sapiens
C. Mammalia
D. Primates
✅ A
Q73. Family:
A. Primates
B. Mammalia
C. Hominidae
D. Homo
✅ C
Q74. Order:
A. Primates
B. Mammalia
C. Homo
D. sapiens
✅ A
Q75. Class:
A. Mammalia
B. Primates
C. Homo
D. Animalia
✅ A
📖 Case 4: Tools of Taxonomy
Q76. Herbarium stores:
A. Animals
B. Plants
C. Microbes
D. Fossils
✅ B
Q77. Botanical garden:
A. Preserved
B. Living plants
C. Animals
D. Fossils
✅ B
Q78. Museum stores:
A. Living
B. Preserved animals
C. Plants
D. Cells
✅ B
Q79. Key used for:
A. Naming
B. Identification
C. Evolution
D. Classification
✅ B
Q80. Manuals give:
A. Description
B. Colour
C. Size
D. Age
✅ A
📖 Case 5: Systematics
Q81. Includes:
A. Naming
B. Evolution
C. Relationship
D. B & C
✅ D
Q82. Derived from:
A. Greek
B. Latin
C. Hindi
D. French
✅ B
Q83. “Systema” means:
A. Name
B. Arrangement
C. Species
D. Group
✅ B
Q84. Book written by:
👉 Carolus Linnaeus
✅ Answer
Q85. Systematics broader than taxonomy:
A. True
B. False
✅ A
📖 Case 6: Nomenclature Rules
Q86. Language:
A. English
B. Latin
C. Hindi
D. French
✅ B
Q87. Handwritten:
A. Italic
B. Underline
C. Bold
D. Caps
✅ B
Q88. Printed:
A. Italic
B. Bold
C. Caps
D. Underline
✅ A
Q89. Genus:
A. Capital
B. Small
C. Number
D. Symbol
✅ A
Q90. Species:
A. Capital
B. Small
C. Bold
D. Caps
✅ B
📖 Final Rapid Fire (91–100)
Taxonomy = INC → ✅ D
Biodiversity = variety → ✅ A
Species smallest → ✅ A
Kingdom largest → ✅ B
Binomial = two names → ✅ A
Latin names universal → ✅ A
ICZN animals → ✅ B
ICBN plants → ✅ A
Taxa = category → ✅ B
Classification = grouping → ✅ B
🚀 Final NEET Booster
👉 Most Asked Topics:
Binomial nomenclature rules
Taxonomic hierarchy
Difference: Taxonomy vs Systematics
Linnaeus & contributions
- https://bioteacher-iq.blogspot.com/
🔗 INTERNAL LINKS (For Blog/Website)
Link these topics internally:
👉 Biological Classification (Chapter 2)
👉 Plant Kingdom Notes
👉 Animal Kingdom Notes
👉 Cell Structure and Function
👉 Biomolecules
👉 Ecology & Environment
👉 NEET Biology MCQs Practice
👉 NCERT Line-by-Line Biology Notes
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