Question

P are single-celled organisms with varying shapes such as round, rod or spiral. Q are autotrophic organisms having undifferential plant bodies. R are plant-like organisms exhibiting heterotropic mode of nutrition. S are organisms which exhibit characteristics of both living as well as non-living things.

Select the correct sequence of terms to complete the above paragraph.
PQRS
(A)VirusesAlgaeFungiBacteria
(B)VirusesFungiAlgaeBacteria
(C)BacteriaFungiAlgaeViruses
(D)BacteriaAlgaeFungiViruses

Answer 1

Bacteria (P) - are single celled, prokaryotic organisms. They vary in size like spherical (Coccus), Rod shaped (Bacillus), Spiral shaped (Spirillum) and Comma shaped (Vibrio)

Algae (Q) - belong to Thallophyta, have undifferentiated body and are photosynthetic autotrophs

Fungi (R) - Belong to Fungi with mycelium as body structure, heterotrophic mode of nutrition (saprophytic, symbiotic or parasitic)

Viruses (S) - Viruses exhibit characteristics of both living as well as non-living, as they are non-reactive and cannot reproduce unless they are hosted by a living cell.

So, the correct answer is '(D)Bacteria (P),Algae (Q),Fungi (R),Viruses (S)