Diversity in the Living World Biology - Diversity in the living world This topic covers the NCERT-based diversity of organisms and the need for classification to study them systematically.All MCQs below are NCERT-oriented and focus on biodiversity and classification principles. 1 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Mangifera indica belongs to: 1. Different genus, same species 2. Different family 3. Same genus, same species 4. Same genus, different species Mangifera = genus, indica = species → same genus and species. 2 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following is NOT a rule of binomial nomenclature? 1. Genus starts with capital letter 2. Latinised names 3. Two-word system 4. Species name starts with capital letter Species name always starts with a small letter. 3 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The genus name in binomial nomenclature indicates: 1. Individual organism 2. Population 3. Kingdom 4. Group of related species Genus includes closely related species. 4 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following correctly represents a biological name? 1. Mangifera indica 2. mangifera indica 3. Mangifera Indica 4. mangifera Indica Genus starts with capital letter, species with small letter, both written in italics. 5 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The main purpose of scientific naming is to: 1. Increase biodiversity 2. Reduce species 3. Avoid confusion worldwide 4. Promote evolution Scientific naming ensures that each organism has one universally accepted name, avoiding confusion caused by local names. 6 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Local names of organisms vary because: 1. They are scientific 2. They follow ICZN 3. They are universally accepted 4. They differ from place to place NCERT highlights that local/common names vary even within a country, causing confusion in communication. 7 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which term represents a group of organisms capable of interbreeding? 1. Population 2. Community 3. Species 4. Genus A species is the basic unit of classification, consisting of organisms capable of interbreeding and producing fertile offspring. 8 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Systematics differs from early classification systems because it considers: 1. Body size 2. Evolutionary relationships 3. Habitat 4. Uses of organisms Earlier classifications were utility-based; modern systematics is evolution-based. 9 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The collective study of identification, classification and nomenclature is called: 1. Ecology 2. Evolution 3. Taxonomy 4. Biodiversity NCERT definition of taxonomy. 10 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following is NOT a reason why all organisms cannot be studied individually? 1. Lack of interest 2. Large number of species 3. Continuous discovery of species 4. Vast diversity The limitation is scale and diversity, not interest. 11 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which statement best reflects the purpose of taxonomy? 1. Discover new species only 2. Study fossils 3. Name organisms only 4. Organise biological diversity systematically Taxonomy includes characterisation, identification, classification and naming. 12 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Classification becomes meaningful only after: 1. Evolution 2. Characterisation 3. Systematics 4. Nomenclature Characters must be known before grouping organisms. 13 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Identify the incorrectly matched pair: 1. ICBN – Plants 2. ICZN – Animals 3. Binomial nomenclature – Two names 4. ICBN – Bacteria ICBN applies only to plants, not bacteria. 14 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following correctly represents a taxon at a lower level? 1. Vertebrates 2. Dog 3. Animals 4. Mammals “Dog” is more specific than mammals or animals. 15 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which situation best demonstrates the need for scientific names? 1. Global scientific communication 2. Classroom teaching 3. Local communication 4. Studying evolution Scientists worldwide must refer to the same organism unambiguously. 16 / 46 Category: Biology - The living World Tags: Diversity in the living world Scientific naming avoids confusion mainly because: 1. Names are short 2. Names are in Latin 3. Names are easy to write 4. Each organism has only one accepted name Uniqueness of names removes ambiguity across regions. 17 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following are considered in modern taxonomic studies? I. Cell structureII. Developmental processIII. Ecological informationIV. Only external morphology 1. I, II and III 2. II and IV 3. I and IV 4. Only IV Modern taxonomy goes beyond morphology, as stated in NCERT. 18 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Systematics differs from taxonomy because systematics also includes: 1. Classification only 2. Evolutionary relationships 3. Identification 4. Naming rules Systematics = taxonomy + evolutionary history. 19 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Grouping organisms based on similarities for ease of study is best termed as: 1. Systematics 2. Classification 3. Nomenclature 4. Identification Classification organizes organisms into convenient categories. 20 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which contribution is correctly associated with Carolus Linnaeus? 1. Binomial nomenclature 2. Phylogenetic system 3. Five kingdom classification 4. Theory of evolution Linnaeus introduced the two-word naming system. 21 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which statement best explains the relationship among taxa? 1. Lower taxa are included within higher taxa 2. Taxa are unrelated 3. Higher taxa contain fewer organisms 4. All taxa are equal Example: species ⟶ genus ⟶ family ⟶ kingdom. 22 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The scientific term for any taxonomic category at any level is: 1. Species 2. Genus 3. Kingdom 4. Taxon Taxon can represent any level—species, genus, family, etc. 23 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Scientific names are written in Latin mainly to: 1. Increase complexity 2. Ensure universal acceptance 3. Honor Roman scientists 4. Honor Roman scientists Latin is a dead language, unchanged, ensuring stability and global use. 24 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following statements regarding nomenclature is INCORRECT? 1. Scientific names are Latinised 2. Each organism has a unique name 3. Codes regulate scientific naming 4. Same name can be used for two organisms Scientific naming ensures one name for one organism globally. 25 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which step MUST occur before assigning a scientific name to an organism? 1. Classification 2. Systematics 3. Evolutionary study 4. Identification NCERT clearly states: nomenclature is possible only after correct identification. 26 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Identify the odd one with respect to standardisation of names: 1. Scientific name 2. Binomial nomenclature 3. Local name 4. International codes Local names vary regionally and are not standardised, unlike scientific names. 27 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following statements about biodiversity are correct? I. It refers only to plant diversityII. It includes both number and variety of organismsIII. New species are still being discoveredIV. Biodiversity is constant on Earth 1. II and III 2. I and IV 3. I, II and III 4. II, III and IV Biodiversity includes number + types of organisms, and NCERT states that new organisms are continuously identified. It is not constant. 28 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which processes form the foundation of taxonomy? 1. Identification and evolution 2. Classification and systematics 3. Naming and grouping 4. Characterisation, identification, classification, nomenclature NCERT explicitly lists these four core processes of taxonomy. 29 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The term “systematics” is derived from: 1. Greek word soma 2. Latin word systema 3. French word system 4. English word system Systema means systematic arrangement. 30 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The branch of biology that deals with evolutionary relationships is: 1. Systematics 2. Taxonomy 3. Classification 4. Nomenclature Systematics studies diversity + evolutionary relationships. 31 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Modern taxonomy considers all EXCEPT: 1. Ecological information 2. External structure 3. Only morphology 4. Internal structure Modern taxonomy includes cell structure, development, ecology, not just morphology. 32 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following correctly represents increasing order of taxonomic hierarchy? 1. Dogs → Mammals → Animals 2. Animals → Mammals → Dogs 3. Mammals → Animals → Dogs 4. Dogs → Animals → Mammals Dog ⟶ mammal ⟶ animal represents increasing hierarchy. 33 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The scientific term used for categories such as mammals, plants, wheat is: 1. Species 2. Genus 3. Kingdom 4. Taxa Taxa can exist at different hierarchical levels. 34 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Grouping organisms based on observable characters is called: 1. Identification 2. Systematics 3. Nomenclature 4. Classification Classification groups organisms into convenient categories. 35 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The author’s name written after a scientific name indicates: 1. Discoverer of genus 2. Place of origin 3. First describer of species 4. Habitat Example: Mangifera indica Linn. — Linnaeus first described it. 36 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points When handwritten, scientific names are: 1. Written normally 2. Written in bold 3. Separately underlined 4. Written in capitals Underline indicates Latin origin when italics are not possible. 37 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Which of the following rules of nomenclature is CORRECT? 1. Both words start with capital letters 2. Names are written in English 3. Names are underlined only when printed 4. Genus starts with capital letter, species with small letter NCERT clearly states this formatting rule. 38 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points In Mangifera indica, the word Mangifera represents: 1. Genus 2. Species 3. Variety 4. Family The first word of a scientific name denotes the genus. 39 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Binomial nomenclature was introduced by: 1. Darwin 2. Whittaker 3. Aristotle 4. Carolus Linnaeus Linnaeus introduced binomial nomenclature in Systema Naturae. 40 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The system of naming organisms using two words is called: 1. Trinomial nomenclature 2. Binomial nomenclature 3. Polynomial nomenclature 4. Scientific classification Binomial nomenclature uses two components: genus and species. 41 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Animals are scientifically named following: 1. ICZN 2. BIN 3. WHO 4. ICBN Animals follow International Code of Zoological Nomenclature (ICZN). 42 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Scientific naming of plants follows: 1. ICZN 2. ICBN 3. ICN 4. BIN Plants are named according to International Code of Botanical Nomenclature (ICBN). 43 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The process of giving a universally accepted scientific name to organisms is called: 1. Classification 2. Nomenclature 3. Identification 4. Taxonomy Nomenclature ensures one correct name for one organism worldwide. 44 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points Why is scientific naming of organisms necessary? 1. Local names are difficult to remember 2. Local names vary from place to place 3. Each organism has multiple scientific names 4. Scientific names are easier to pronounce NCERT highlights that local names differ even within a country, creating confusion. Scientific names avoid this. 45 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The term biodiversity refers to: 1. Only number of plants 2. Only number of animals 3. Number and types of organisms present on Earth 4. Genetic variation within species Biodiversity includes both variety and number of organisms, not limited to plants or animals alone. 46 / 46 Category: Biology - The living World Tags: Diversity in the living world 1 points The total number of species described so far on Earth is approximately: 1. 0.5 million 2. 1.0 million 3. 1.7–1.8 million 4. 3.5 million NCERT states that about 1.7–1.8 million species have been identified and described so far, representing Earth’s biodiversity. Your score isThe average score is 0% 0% Restart quiz