1. The age of the earth is about______ years.
a. 3.5 Billion
b. 3.54Billion
c. 5.54Billion
d. 4.54 Billion
Correct Answer: d
.
2. __________ was a time in which rapid growth of biodiversity occurred via Cambrian explosion.
a. Phanerozoic eon
b. Cambrian eon
c. Carboniferous eon
d. None of these
Correct Answer: a
.
3. Each year approximately_________ no of species are discovered and classified.
a. 1300
b. 130000
c. 130
d. 13000
Correct Answer: d
.
4. Area that are rich in species diversity are called as______.
a. All of these
b. Hot spot
c. Species richness
d. Species evenness
Correct Answer: b
.
5. ‘’Biological diversity is the variety of life forms at all levels of biological systems (i.e., molecular, organismic, population, species and ecosystem)”. This term is coined by
a. Wilcox in 1982
b. Wilcox in 1984
c. Gaston and spicer in 2004
d. United nations in 2006
Correct Answer: a
.
6. Total no of species that are present on earth_____________.
a. 2-5M
b. 2-5B
c. None of these
d. 5-30M
Correct Answer: d
.
7. What is the scientific name of national animal of Pakistan?
a. Alectoris chukar
b. Cepra falconeri
c. Vulpus vulpus
d. Serratia ficaria
Correct Answer: b
.
8. Average species diversity in a habitat or specific area is called as ________.
a. None of these
b. Alpha diversity
c. Beta diversity
d. Gamma diversity
Correct Answer: b
.
9. Gamma diversity was introduced by_________
a. None of these
b. Cornell
c. Whittaker
d. Huston
Correct Answer: b
.
10. Ratio of Arthropods community in world is about.
a. 0.0002
b. 0.0005
c. 0.15
d. 0.61
Correct Answer: d
.
11. No of fish species present in Pakistan
a. 560
b. 600
c. 660
d. 500
Correct Answer: d
.
12. Biodiversity provides economic benefits which makes it beneficial to__________.
a. Plants
b. Biodiversity
c. Humans
d. Animals
Correct Answer: c
.
13. ___________is a medicine taken from plants to treat leukemia affected children’s.
a. Baboons flowers
b. Mellburry flowers
c. Madagscar roes periwinkle flowers
d. Rose flower
Correct Answer: c
.
14. Profitable and sustainable farms rely on goods and services from nature such as soil, water, air, nutrient cycling and pest control. These services are often called a______.
a. Indirect benefits
b. Ecosystem services
c. Biodiversity services
d. Direct benefits
Correct Answer: b
.
15. A single corm plant having 1lb dry weight can transfer ________ water from soil to atomsphere.
a. 40 gallons
b. 50 gallons
c. 70 gallons
d. 60 gallons
Correct Answer: d
.
16. National fish of Pakistan is
a. Thaila
b. Mori
c. Mahseer
d. Rahu
Correct Answer: c
.
17. A gram of fertile agricultural soil contains_______.
a. 2.5 Billion bacteria
b. 40000 fungi
c. 50000 algae
d. All of these
Correct Answer: d
.
18. Total no of known species is__________.
a. 2M
b. 5-30M
c. 2M
d. 1.8M
Correct Answer: d
.
19. Conservation of species to its natural habitat is known as.
a. Legislation
b. None of these
c. In situ conservation
d. Ex situ conservation
Correct Answer: c
.
20. Area where strict rules are applied about the conservation of organisms is known as___________.
a. All of these
b. Corridor
c. National Park
d. Sancturies
Correct Answer: b
.
21. Conservation of species in National parks is known as___________.
a. None of these
b. Ex situ conservation
c. In situ conservation
d. Legislation
Correct Answer: b
.
22. National animal of Pakistan is
a. Lion
b. Tiger
c. Markhor
d. Chukar
Correct Answer: c
.
23. Conversion of Ammonia into nitrite is done by
a. P. lactobacillus
b. P. ariugunosa
c. Nitrosomines
d. Nitrobacter
Correct Answer: c
.
24. How tundra is distinguished from other biomes
a. Snow
b. location
c. Absence of trees
d. All of these
Correct Answer: d
.
25. Why trees don’t grow in tundra
a. short summe and two cold winters
b. no fertility
c. no water resource
d. no desert
Correct Answer: a
.
26. _________ occurs when the death of the last individual in a species occurs.
a. speciation
b. Extinction
c. Adaptation
d. Phylogenetic diversity
Correct Answer: b
.
27. The characteristics of species include
a. reproduvtively isolated
b. interbreed freely
c. fertile offspring
d. All of above
Correct Answer: d
.
28. Types of food chain are
a. 3
b. 4
c. 6
d. 2
Correct Answer: d
.
29. Pyramid of numbers is a graphical representation that shows the….of organisms at each trophic level
a. shape
b. Levels
c. Number
d. mass
Correct Answer: c
.
30. ..…are ecosystem engineers
a. camels
b. Beaver
c. Flying foxes
d. Group of island
Correct Answer: b
.
31. ..…is a measure of the overall number of species (the diversity) within a region
a. None of these
b. Gamma diversity
c. Beta diversity
d. Alpha diversity
Correct Answer: b
.
32. ….species are endemic to Pakistan
a. 0.1
b. 0.15
c. 0.2
d. 0.07
Correct Answer: d
.
33. ………worms, borrowing insects, nematoda
a. Mesofauna
b. Miofauna
c. None
d. Microfauna
Correct Answer: c
.
34. small ecosystem are
a. Pond
b. Ocean
c. Sea
d. River
Correct Answer: a
.
35. ……..contain no cell wall
a. Bacteria
b. Arcahaea
c. Eubacteria
d. Virus
Correct Answer: b
.
36. Fir is found in…
a. Taiga
b. Desert
c. Grassland
d. Tropical rain forest
Correct Answer: a
.
37. Shellac is formed from..
a. cork oak
b. All of these
c. Lac insect
d. Pure rubber tea
Correct Answer: c
.
38. Codeine is a..
a. Painkiller
b. cardiac stimulant
c. Anticancer agent
d. Antibacterial
Correct Answer: a
.
39. Which region has greatest diversity
a. Ethiopian
b. Australian
c. Neotropical
d. Nearctic
Correct Answer: c
.
40. Indian wild ass loss due to……
a. Surra
b. FMD
c. Anthrax
d. Sleeping sickness
Correct Answer: a
.
41. Yeast are…..celled
a. Single
b. Double
c. Multicelled
d. None of these
Correct Answer: a
.
42. Molds are….celles
a. Double
b. None of these
c. Multicelled
d. Single
Correct Answer: c
.
43. …….symmetry in which body is divided into two equal halves
a. None of these
b. Bilateral
c. Radial
d. Asymmetry
Correct Answer: b
.
44. Arctic foxes are found in……
a. Tundra
b. Grassland
c. Desert
d. Tropical rain forest
Correct Answer: a
.
45. Renewable natural resources are……
a. Water
b. Coal
c. Oil
d. Gas
Correct Answer: a
.
46. Non renewable natural resources are…..
a. soil
b. Air
c. Oil
d. Water
Correct Answer: c
.
47. Neotropical region include…….
a. South America
b. Africa
c. Australia
d. Asia
Correct Answer: a
.
48. Threatened species of mammals in pakistan are
a. 23
b. 25
c. 26
d. 20
Correct Answer: d
.
49. Ethiopian region include…….
a. America
b. Australia
c. Asia
d. Africa
Correct Answer: d
.
50. ……species which are popular for collection and culture and provide aesthetic value
a. indicator
b. Charismatic
c. Keystone
d. Umbrella
Correct Answer: b
.
