Practice free Botany NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following organisms belongs to the Class Dicotyledonae?
Referring to Table 1.1, Mango (Mangifera indica) belongs to the Class Dicotyledonae, while Wheat (Triticum aestivum) belongs to Monocotyledonae, and Housefly and Man are animals.
The problem of classification becomes more complex as we move to higher categories because:
The NCERT text states: 'Higher the category, greater is the difficulty of determining the relationship to other taxa at the same level. Hence, the problem of classification becomes more complex.' While common characteristics decrease, the complexity arises from establishing relationships at the same level.
What is the primary requirement for placing an organism in various taxonomic categories?
The text states: 'Now the question you may ask is, how to place an organism in various categories? The basic requirement is the knowledge of characters of an individual or group of organisms. This helps in identifying similarities and dissimilarities among the individuals of the same kind of organisms as well as of other kinds of organisms.'
For organisms like Housefly, Man, Mango, and Wheat, the highest common taxonomic category mentioned in Table 1.1 is:
Looking at Table 1.1, 'Phylum/Division' is the highest common category explicitly listed for all four organisms before the Kingdom, which acts as the ultimate division into broad groups like Animalia and Plantae.
All animals belonging to various phyla are assigned to the highest category called:
The NCERT text states: 'All animals belonging to various phyla are assigned to the highest category called Kingdom Animalia in the classification system of animals.'
The term 'systematics' was later enlarged to include:
The context mentions: 'The scope of systematics was later enlarged to include identification, nomenclature and classification. Systematics takes into account evolutionary relationships between organisms.' This implies all four aspects are included.
Which of the following statements about taxonomic categories is INCORRECT?
The text explicitly states: 'Classification is not a single step process but involves hierarchy of steps...'. Therefore, the statement 'Classification is a single-step process' is incorrect.
The lowest taxonomic category common to both Mangifera indica (Mango) and Triticum aestivum (Wheat) according to Table 1.1 is:
From Table 1.1: Mango (Mangifera indica) and Wheat (Triticum aestivum) both belong to Division Angiospermae. Their classes (Dicotyledonae and Monocotyledonae respectively), orders, families, genus, and species are different.
Identify the correct sequence of taxonomical categories provided in the exercises section:
Referencing Figure 1.1 and general biological knowledge, the ascending hierarchical order is Species, Genus, Family, Order, Class, Phylum/Division, Kingdom. Option (d) presents the full correct sequence, although other options in the exercise question (not the provided options) were incomplete or incorrect.
What percentage of the world's land area does India account for, and what is its corresponding share of global species diversity?
The text states: 'Although India has only 2.4 per cent of the world’s land area, its share of the global species diversity is an impressive 8.1 per cent.'
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