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Flow of energy in food chain of an ecosystem is (A)Unidirectional (B)Bidirectional (C)Multidirectional (D)None of these
Flow of energy in food chain of an ecosystem is (A)Unidirectional (B)Bidirectional (C)Multidirectional (D)None of these
Biology | biology | Previous Year Question Papers
Flow of energy in food chain of an ecosystem is (A)Unidirectional (B)Bidirectional (C)Multidirectional (D)None of these

Correct option:(A)

Solution:

  • Energy flow in an ecosystem is always unidirectional in nature.
  • Most of energy is released at the trophic level in the form of heat and performing metabolic activities.
  • So 10% is transferred from one trophic level to next level.
  • This makes unidirectional flow of energy.
i

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At a certain location in Africa, a compass points $12^{\circ}$ west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be $0.16 \mathrm{G} .$ Specify the direction and magnitude of the earth’s field at the location.At a certain location in Africa, a compass points $12^{\circ}$ west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be $0.16 \mathrm{G} .$ Specify the direction and magnitude of the earth’s field at the location.