Biology Chapter No.11 Ecosystem 2nd Year Online Quiz MCQs Test pdf

Biology MCQs 2nd Year Chapter No. 11 Ecosystem, FSc, Grade 12th, Second Year Multiple Choice Questions, Medical College ( MDCAT ) , ECAT & University Admission Entry Test Exams Online Preparation, Chapter Wise Questions Answers Quiz Notes in Pdf Download, All Old Board Papers included, All Queries reply within 24 Hours. Click here to Contact us for any Query/Question regarding Exams.

Biology
Chapter Name : ECOSYSTEM
Chapter No. 11 
Second Year
Multiple Choice Questions
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.
 








Book Name :  Biology
Chapter No. 11
Chapter Name : ECOSYSTEM
Total MCQ from Text Book :  83
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal 
Class / Grade  : 12th ( F.Sc. Intermediate)
Total Marks : 83
Total Time :  83 minutes
68

GRADE 12 - BIOLOGY CHAPTER NO.11 ECOSYSTEM

GRADE 12 - BIOLOGY CHAPTER NO.11 ECOSYSTEM

1 / 83

The role played by an individual in a communtiy is :

2 / 83

The change In structure of community of an ecosystem during a time

3 / 83

A loclized group of individuals belonging to the same species is called as :

4 / 83

The total energy from sun is trapped by producer in an ecosystem is:

5 / 83

Synecology is also known as the

6 / 83

Study of single population relationship to its environments is called

7 / 83

The bacteria In the root nodules fix nitrogen and convert it into:

8 / 83

Group of individuals which can interbreed & produce organisms of their own kind form a:

9 / 83

The living organisms which can prepare their own food are:

10 / 83

Balance of ecosystem is kept by:

11 / 83

A symbiotic relationship that benefits one species & neither helps nor harms the other is called:

12 / 83

10.Food chains combine to form:

13 / 83

How does a predators react to population density of prey?

14 / 83

The study of relationships of organisms to their environment is known as:

15 / 83

7."Atrno" means:

16 / 83

One of the following is an example of predator-prey relationship:

17 / 83

The succession which occur in dry soil or rock is:

18 / 83

The total energy from sun is trapped by producer in an ecosystem is:

19 / 83

Which one of the following is a parasite:

20 / 83

In 1917, term niche was first proposed by AmericanOrnithologist named

21 / 83

Which one is responsible for the conversion of nitrites into nitrates ?

22 / 83

The actual location of place, where an organism lives is called Its:

23 / 83

A group of inter-breeding individuals, beloging to same species and sharing a common geophraphic area, is called :

24 / 83

Production of new organic matter at the consumers level is called :

25 / 83

The bacteria in the root nodules fix nitrogen and convert it into:

26 / 83

The total production of organic matter by green plants minus respiratory loss is called :

27 / 83

C.Eton defined the Niche as the species

28 / 83

Biome is a :

29 / 83

Microorganisms while use protein, release ammonia. This process is:

30 / 83

8."Litho" means:

31 / 83

Consumer that preys other animals is known as:

32 / 83

Study of relationship of different communities to environment is called:

33 / 83

5.The relationship of a single population towards its environment is called:

34 / 83

The major compononts of ecosystem are:

35 / 83

Diseases in living organisms caused by parasites are called:

36 / 83

Climax is the establishment of

37 / 83

The abiotic component of an ecosystem is :

38 / 83

In ecosystem the word teco is related to:

39 / 83

The succession in pond is called:

40 / 83

The term niche was proposed by:

41 / 83

During energy transformation at different trophic leVels, the energy lost as heat is in range:

42 / 83

If population of predator increases then population of prey.

43 / 83

A change In the community, structure of an ecosystem over a period of time is :

44 / 83

The process in which micro-organisms use the proteins and amino acids and release ammonia of ammonium ions is known as :

45 / 83

Elements required in large amounts are called:

46 / 83

Nitrogen is balanced by:

47 / 83

All the food chains begin with:

48 / 83

Which one of the following refers to commensalisms:

49 / 83

In a grassland food chain, what is the correct sequence:

50 / 83

Who proposed the term Niche in Ecology:

51 / 83

In each case succession is initiated by a few hardy invaders called:

52 / 83

Grazera feeds on:

53 / 83

Which one of the following is autotroph:

54 / 83

Lithosphere includes:

55 / 83

Succession starts on dry soil is called:

56 / 83

Charles Eton defined the niche as the species's :

57 / 83

Land lifeless structure is referred by the stage:

58 / 83

6.The study of growth responses of plant is called:

59 / 83

What is the net production of the total photosynthate after the use by plants themselves?

60 / 83

One of the following is an example of predator-prey relationship:

61 / 83

In xerosere, Polytrichum and tortula represent:

62 / 83

Lichens are an example of :

63 / 83

The distinct levels or link of food chain are called:

64 / 83

The seral stages of a primary succession are:

65 / 83

The relationship between insects and flowering plants is the example of

66 / 83

Moss stage is represented by :

67 / 83

9.Fungi as well as bacteria are generally known as:

68 / 83

When bacteria in soil oxidize ammonia or ammonium ions, this Is called:

69 / 83

Which one of the following is an ectoparasite:

70 / 83

Of the total sunlight that strikes the earth, what amount of it is absorbed by photosynthetic machinery?

71 / 83

The actual location of place, where an organism lives is called Its:

72 / 83

The animal that is caught and eaten is called :

73 / 83

An association between two organisms by which both are benefited is called:

74 / 83

Once nitrate enters the plant cell it is reduced as:

75 / 83

Group of interbreeding organisms residing together in space & time are:

76 / 83

Intfestations are the diseases which are caused by _______ in living organisms.

77 / 83

Who defined the niche as the species occupation ?

78 / 83

4.Layer of earth where life is present is called:

79 / 83

The bacteria living in the root nodules of the legume plants serve to fix atmospheric.

80 / 83

3.Regional ecological community of plants & animals form:

81 / 83

Herbaceous stage in xerosere is the

82 / 83

Primary succession starting in a pond is called:

83 / 83

In which of the following from nitrogen enters into plant bodies ?

Your score is

The average score is 49%

0%

[mtouch 160]

 




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