Answer: An accepted classification.
- A Strict alphabetical order
- B An accepted classification
- C A random arrangement
- D Their date of collection
Correct answer: B. An accepted classification
Explanation: Herbarium sheets are stored following an accepted system of classification, which makes retrieval and study systematic.
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.