Which of the following are likely to be present in deep sea water?

Correct Option (a) Reason : Archaebacteria can flourish in hot springs and deep sea hypothermal vents. Eubacteria are true bacteria, characterised by the presence of rigid cell wall and if motile a flagellum. Most fungi are heterotrophic and absorb soluble organic matter from dead substrates and hence, are called saprophyte. The cyanobacteria have chlorophyll-a similar to green plants and are photosynthetic autotrophs.