Which of the following groups of algae does not have eukaryotic organization?

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called

Primitive bacteria living in salty areas are called as

In bacteria,which of the following statements is correct regarding their genetic material?

Which feature is characteristic of organisms belonging to the Kingdom Monera?

In the five kingdom system of classification,which single kingdom out of the following can include blue-green algae,nitrogen-fixing bacteria,and methanogenic archaebacteria?