Answer: Referral aids for identification.
- A Purely decorative displays
- B Seed banks for farming
- C Referral aids for identification
- D Live plant breeding centres
Correct answer: C. Referral aids for identification
Explanation: A herbarium serves as a quick referral system - specimens with labels help identify and verify the names of newly collected plants.
The taxonomic hierarchy narrows from Kingdom (broadest, covering the most organisms but fewest shared traits) down to Species (narrowest, fewest organisms but most shared traits) - every level in between is a progressively more specific subset of the one above it.
Concept context
Biodiversity, taxonomy, binomial nomenclature, the taxonomic hierarchy, and taxonomic aids like herbaria and botanical gardens. The foundational first chapter of NCERT Biology.