All heterotrophs require an environment which can provide:

  • A
    Nitrates in solution
  • B
    Organic compounds
  • C
    Ammonium salts
  • D
    Vitamin-$A$

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Which of the following statements is consistent with death?

Which mysterious property do living organisms possess?

In higher organisms,the unique phenomena of life are made possible due to which of the following?

Assertion: Living organisms are regarded as closed systems.
Reason: Energy of living organisms cannot be lost or gained from the external environment.

Which organisms demonstrate that reproduction is not an essential characteristic of all living organisms?

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