One of the major components of the bacterial cell wall is a polymer called:

Which organisms obtain energy from the oxidation of reduced inorganic compounds?

$......$ bacteria oxidise various inorganic substances such as nitrites,ammonia and use the released energy for $\text{ATP}$ production $:-$

Which of the following organisms live in extremely salty areas?

Which domain of life is known for surviving in extreme environmental conditions?

Gas vacuoles are found in which of the following?