Which of the following organisms acts as an air quality indicator?

  • A
    Lichen
  • B
    Moss
  • C
    Algae
  • D
    None of these

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Give a brief account of viruses with respect to their structure and nature of genetic material. Also,name four common viral diseases.

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$A$: Viruses which infect animals generally possess $ssRNA$ or $dsRNA$ or $dsDNA$.
$R$: Phytophagineae generally contain $dsDNA$.

What is the cup-shaped fruiting body of a lichen called?

The symbiotic association of fungi and algae is called

Which of the following is not included in any of the five kingdoms proposed by $R.H. \text{Whittaker}$?

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