Ecosystem MCQ Questions & Answers in Botany

51. In a biotic community, the primary consumers are

A carnivores

B omnivores

C detritivores

D herbivores

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52. The main role of bacteria in the carbon cycle involves

A photosynthesis

B chemosynthesis

C digestion or breakdown of organic compounds

D assimilation of nitrogenous compounds

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53. In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?

A Gross primary productivity is always more than net primary productivity

B Gross primary productivity and Net primary productivity are one and same

C There is no relationship between Gross primary productivity and Net primary productivity

D Gross primary productivity is always less than net primary productivity

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54. Bamboo plant is growing in a fir forest then what will be the trophic level of it?

A First trophic level $$\left( {{T_1}} \right)$$

B Second trophic level $$\left( {{T_2}} \right)$$

C Third trophic level $$\left( {{T_3}} \right)$$

D Fourth trophic level $$\left( {{T_4}} \right)$$

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55. Identify the possible link $$"A"$$ in the following food chain :

Plant $$ \to $$ insect - frog $$ \to $$ $$"A"$$ $$ \to $$ Eagle

A Rabbit

B WoIf

C Cobra

D Parrot

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56. If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected, because

A energy flow will be blocked

B herbivores will not receive solar energy

C mineral movement will be blocked

D rate of decomposition will be very high

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57. Secondary productivity is rate of formation of new organic matter by

A Parasite

B Consumer

C Decomposer

D Producer

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58. An association of individuals of different species living in the same habitat and having functional interactions is:

A Biotic community

B Ecosystem

C Population

D Ecological niche

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59. Which of the following pairs is a sedimentary type of biogeochemical cycle?

A oxygen and nitrogen

B phosphorus and sulphur

C phosphorus and nitrogen

D phosphorus and carbon dioxide

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60. The biomass available for consumption by the herbivores and the decomposers is called:

A net primary productivity

B secondary productivity

C standing crop

D gross primary productivity

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51. In a biotic community, the primary consumers are

52. The main role of bacteria in the carbon cycle involves

53. In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?

54. Bamboo plant is growing in a fir forest then what will be the trophic level of it?

55. Identify the possible link $$"A"$$ in the following food chain : Plant $$ \to $$ insect - frog $$ \to $$ $$"A"$$ $$ \to $$ Eagle

56. If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected, because

57. Secondary productivity is rate of formation of new organic matter by

58. An association of individuals of different species living in the same habitat and having functional interactions is:

59. Which of the following pairs is a sedimentary type of biogeochemical cycle?

60. The biomass available for consumption by the herbivores and the decomposers is called:

Practice More MCQ Question on Biology Section

55. Identify the possible link $$"A"$$ in the following food chain :

Plant $$ \to $$ insect - frog $$ \to $$ $$"A"$$ $$ \to $$ Eagle