Samacheer Kalvi Class 12 Bio Botany Ecosystem Questions Pdf - 1

Question: 1

Who coined the term Ecosystem?

Question: 2

Which is irrelevant to the first law of thermodynamics?

(A) Energy transformation results in reduction of free energy

(B) Energy in the universe is constant

(C) Energy can neither be created nor destroyed

(D) Energy can be transmitted from one system to other in many forms

Question: 3

Which one of the following is not a functional unit of an ecosystem?

(A) Conductivity

(B) Productivity

(C) Decomposition

(D) Energy flow

Question: 4

Pyramid of numbers with broad base indicates

(A) Low population of young individuals

(B) High population of old individuals

(C) Low population of old individuals

(D) High population of young individuals

Question: 5

Lotic ecosystem refers to

(A) Ocean water ecosystem

(B) Standing water

(C) Running water ecosystem

(D) Open water ecosystem

Question: 6

Which type of ecosystem service does the genetic resources comes under?

(A) Provisioning services

(B) Cultural services

(C) Regulating services

(D) Supporting services

Question: 7

Which of the following is not a abiotic component of the ecosystem?

(A) Bacteria

(B) Humus

(C) Organic compounds

(D) Inorganic compounds