Class 9 Patterns in Life: Diversity and Classification Mock Test (CBSE)

Topics in Patterns in Life: Diversity and Classification

• India as a biodiversity hotspot
• Evolution of biodiversity
• Criteria for classifying organisms
• Need for classification
• Five kingdom classification
• Monera, Protista, Fungi, Plantae and Animalia
• Hierarchy of classification
• Binomial nomenclature
• Fossils as evidence
• Threats to biodiversity

Patterns in Life: Diversity and Classification practice questions with answers

1. Q1Multiple choice·1 mark
   Which of the following groups of organisms characteristically lacks a well-defined nucleus and membrane-bound organelles?

   1. (a)Fungi
   2. (b)Protista
   3. (c)Monera
   4. (d)Plantae
   Show answer and step marks

   1. Correct option: (c) Monera+1

   Answer: (c)
2. Q2Multiple choice·1 mark
   Which of the following hierarchical sequences correctly represents taxonomic categories in descending order of generality?

   1. (a)Species $\rightarrow$ Genus $\rightarrow$ Family $\rightarrow$ Order $\rightarrow$ Class $\rightarrow$ Phylum $\rightarrow$ Kingdom
   2. (b)Kingdom $\rightarrow$ Phylum $\rightarrow$ Class $\rightarrow$ Order $\rightarrow$ Family $\rightarrow$ Genus $\rightarrow$ Species
   3. (c)Kingdom $\rightarrow$ Class $\rightarrow$ Phylum $\rightarrow$ Order $\rightarrow$ Family $\rightarrow$ Species $\rightarrow$ Genus
   4. (d)Phylum $\rightarrow$ Kingdom $\rightarrow$ Class $\rightarrow$ Order $\rightarrow$ Genus $\rightarrow$ Family $\rightarrow$ Species
   Show answer and step marks

   1. Correct option: (b) Kingdom $\rightarrow$ Phylum $\rightarrow$ Class $\rightarrow$ Order $\rightarrow$ Family $\rightarrow$ Genus $\rightarrow$ Species. Taxonomic hierarchy in descending order of generality starts from the broadest category (Kingdom) down to the most specific category (Species).+1

   Answer: (b)
3. Q3Multiple choice·1 mark
   A newly discovered multicellular, eukaryotic organism is placed in Kingdom Animalia rather than Kingdom Fungi. Which combination of characteristics distinguishes it from fungi?

   1. (a)Presence of chitin cell wall and absorptive nutrition
   2. (b)Absence of cell wall and ingestive heterotrophy
   3. (c)Presence of photosynthetic pigments and autotrophic mode
   4. (d)Presence of peptidoglycan cell wall and multicellularity
   Show answer and step marks

   1. Correct option: (b) Absence of cell wall and ingestive heterotrophy. Fungi possess a chitinous cell wall and exhibit absorptive heterotrophy, whereas animals lack cell walls and exhibit ingestive heterotrophy.+1

   Answer: (b)
4. Q4Multiple choice·1 mark
   Which scientist proposed the five-kingdom system of biological classification in 1969?

   1. (a)Carl Linnaeus
   2. (b)Ernst Haeckel
   3. (c)Carl Woese
   4. (d)R.H. Whittaker
   Show answer and step marks

   1. Correct option: (d) R.H. Whittaker+1

   Answer: (d)

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