Living world practice · Mixed difficulty

Option D (Both 2 and 3) is correct because both zoological parks and botanical gardens conserve organisms outside their natural habitats, which is ex-situ conservation.

Option D (R H Whittaker) is correct because R.H. Whittaker proposed the five-kingdom classification system.

Option A (Only (A) correct) is correct because taxonomic keys are based on similarities and dissimilarities, but a single key cannot be used for all taxonomic categories.

Option D (If both Assertion and Reason are false) is correct because the herbarium sheet label *does* include family, and families are characterized by both reproductive and vegetative features.

Option B (Species) is correct because a species is a group of actually or potentially interbreeding natural populations, which is a real, observable entity.

The correct answer is C (Takhtajan) because he is known for making this statement about the importance of phylogeny in taxonomy.

Option B (Technically complicated feature - Consciousness, Defining feature - Cellular organisation) is correct because consciousness is a complex property, and cellular organization is a fundamental characteristic of all living organisms.

Option C (I, III and IV) is correct because growth, self-replication ability, and response to touch stimuli are properties exclusively shown by living organisms.

Option D (If both Assertion and Reason are false) is correct because not all organisms reproduce, and reproduction is not an all-inclusive characteristic of living organisms.

Option D (1.78 million) is correct because it represents the most widely accepted estimate for the number of identified species on Earth.

Option A is correct because biological names must be written in Latin or Latinized, not any language.

Option A (De Candolle) is correct because the term 'Taxonomy' was coined by De Candolle.

Option D is correct because systematic botany encompasses the identification, naming, and classification of plants in a methodical manner.

Option B (Linnaeus) is correct because Carolus Linnaeus is the scientist who proposed the binomial system of nomenclature.

Option C (response to stimuli) is correct because the ability to sense and respond to external stimuli is a fundamental characteristic that distinguishes living organisms from non-living things.

Option B (Both A and R are true and R is not the correct explanation of A) is correct because both statements are factually correct, but the reason doesn't explain the controlled growth in normal cells.

Option C is correct because individuals of the same species are capable of interbreeding and producing fertile offspring.

Option B (Carolus Linnaeus) is correct because Carolus Linnaeus wrote Systema Naturae.

Option A (As each higher taxonomic category contains it is below  groups/categories) is correct because the hierarchical system reflects nested groups, where each higher category includes the categories below it.

Option B (Museums have a collection of preserved plant and animal specimens) is correct because museums are known for preserving biological specimens.

Option A (Author name appears after indica) is correct because according to binomial nomenclature, the author's name or abbreviation is written after the specific epithet.

Option D (Botanical gardens are ‘in situ’ conservation strategies) is correct because botanical gardens are ex-situ conservation strategies, not in-situ.

Option A (Consciousness) is correct because consciousness, especially self-consciousness, is a complex and defining property of living organisms, particularly humans.

Option D (Responsiveness to touch) is correct because the ability to sense and respond to touch is a fundamental characteristic that distinguishes living organisms from non-living things.

Option A (Mayr) is correct because Ernst Mayr is known for his contributions to the modern synthesis of evolutionary theory and the biological species concept.

Option A (height of the plant) is correct because herbarium sheets typically include collection date, collector name, and local names, but not plant height.

Option C (Taxonomy) is correct because taxonomy, the science of classification, applies to both plants and animals.

Option A (5900) is correct because Linnaeus classified approximately 5900 species in his 'Species Plantarum'.

Option C (Real basic units of classification) is correct because species are considered the fundamental units in biological classification, representing naturally interbreeding populations.

Option A is correct because both the assertion and reason are true, and the reason correctly explains why reproduction cannot be an all-inclusive defining characteristic of living organisms.