Biodiversity solved MCQs chapter No 3

21. When a last member of a particular species dies, the species is said to be

(a) Established

(b) Extinct✅

(c) Threatened

(d) Endangered 

22. In which season Houbara bustard migrates to Pakistan and settles here?

(a) Summer

(b) Spring

(c) Autumn

(d) Winter✅

23. Who published important work on plants classification?

(a) John Ray✅

(b) Andrea Caesalpino

(c) Tourrnefort

(d) Agustus Rivinus

24. What is the greatest threat to biodiversity on this planet?

(a) Habitat loss✅

(b) deforestation

(c) overpopulation

(d) b and c

25. Who divided living organisms into three kingdom Classification System?

(a) Linnaeous

(b) Aristotle

(c) John Ray

(d) Hackel✅

26. How many children born in each minute in the world?

(a) 100

(b) 150

(c) 180✅

(d) 200

27. How many kinds of organisms inhabit the earth?

(a) 1 million

(b) 5 million

(c) 10 million✅

(d) 10 billion

28. Biodiversity means:

(a) Variety within a species

(b) Variety among the species

(c) Variety within a species and among the species✅

(d) None of these

29. The bio diversity of any region depends on:

(a) Climate

(b) Altitude

(c) Soil and other species

(d) All of these✅

30. Biodiversity is richer in:

(a) Tropics✅

(b) Temperate regions

(c) Polar regions

(d) Desert

31. Biodiversity is the source of:

(a) Food

(b) Fibres

(c) Rubber and oil

(d) All of these✅

32. The kinds of animals found on Earth:

(a) 0.5 million

(b) 1.0 million

(c) 1.5 million✅

(d) 2 million

33. The kinds of plants found on Earth:

(a) 0.1 million

(b) 0.3 million

(c) 0.5 million✅

(d) 1.0 million

34. The branch of biology which deals with classification is?

(a) Taxonomy✅

(b) Systematic

(c) Botany

(d) Genetics

35. On what basis, organisms have been classified by biologists?

(a) Similarities

(b) differences

(c) both a and b✅

(d) Randomly

36. It is a group of related phyla:

(a) Kingdom✅

(b) Class

(c) Order

(d) Family

37. It is a group of related classes:

(a) Phylum✅

(b) Class

(c) Family

(d) Species

38. It is a group of related orders:

(a) Genus

(b) Family

(c) Species

(d) Class✅

39. It is a group of related genera:

(a) Species

(b) Family✅

(c) Order

(d) Class

40. Which one is the lowest taxon of classification?

(a) Genus

(b) Order

(c) Species✅

(d) Phylum

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