Class 9 Chapter-12 - Patterns in Life: Diversity and Classification
MCQ Questions with Answers (Part-1)
1. What is the term used for the immense variety of living organisms found on Earth?
B) Biodiversity
2. Which microscopic organisms in the oceans are responsible for releasing most of the oxygen we breathe?
C) Microscopic algae
3. Regions that support a large number of endemic species but have lost significant habitat are known as:
C) Biodiversity hotspots
4. Species that are restricted to a particular region and not found naturally anywhere else are called:
B) Endemic species
5. Around the 4th century BCE, which scientist grouped animals based on their habitat (land, water, and air)?
C) Aristotle
6. Who proposed the five kingdom classification system in 1969?
C) Robert H. Whittaker
7. Which kingdom consists of unicellular prokaryotes such as bacteria and cyanobacteria?
C) Monera
8. Organisms like Amoeba and Paramecium, which are unicellular eukaryotes, belong to which kingdom?
C) Protista
9. Fungi have cell walls made of a tough substance called:
B) Chitin
10. Fungi that obtain nutrients by breaking down dead organic matter are known as:
C) Saprophytes
11. Which plant group is often referred to as the "amphibians of the plant kingdom" because they require water for reproduction?
B) Bryophyta
12. Which was the first group of plants to develop vascular tissues (xylem and phloem) for transporting water and food?
C) Pteridophyta
13. The name "Gymnosperm" is derived from Greek words meaning:
B) Naked seeds
14. Which is the most diverse group of plants on Earth, characterized by the production of flowers and fruits?
B) Angiosperms
15. Animals are classified into two major groups, non-chordata and chordata, based on the presence or absence of a:
B) Notochord
16. Which group of invertebrates is characterized by having jointed appendages and a hard external skeleton?
C) Arthropoda
17. In the classification hierarchy, what is the most specific level where individuals can interbreed?
D) Species
18. Who introduced the binomial system of nomenclature for naming organisms?
C) Carolus Linnaeus
19. In a scientific name like Mangifera indica, the first word (Mangifera) represents the:
C) Genus
20. Which system, proposed by Carl Woese in 1977, divided life into Bacteria, Archaea, and Eukarya?
B) Three domain system
21. What are the preserved remains of ancient plants and animals found in rock layers called?
C) Fossils
22. Which organisms act as natural bioindicators for measuring air quality by changing color in response to pollutants?
B) Lichens
23. The "Father of Modern Biogas" who established India’s first scientifically designed biogas plant was:
B) Ram Bux Singh
24. Which Indian scientist founded the Institute of Palaeosciences and studied fossil plants?
B) Birbal Sahni
25. What is the unique floating grassland habitat found in Manipur, home to the endangered Sangai deer?
C) Phumdis
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