The basic unit used by Whittaker for classifying organisms in the five-kingdom system is:

Which major structural property distinguishes archaebacteria from other bacteria?

The main reason cyanobacteria are useful in paddy fields is because they:

Mycoplasma are unique among prokaryotes because they:

Sexual reproduction in bacteria is best described as:

Which group of organisms includes both unicellular and colonial forms and often forms blooms in polluted water bodies?

Which one of the following protist groups is saprophytic and forms a multinucleate mass during its life cycle?

In which habitat are most members of Kingdom Protista primarily found?

In diatoms, the cell wall is made of:

The network of hyphae in fungi is called:

Fungi that have coenocytic (multinucleate and aseptate) hyphae belong mainly to:

The cell wall of fungi is composed of:

The dikaryophase in fungi refers to cells having:

In which class of fungi are conidia produced exogenously on conidiophores?

Which class of fungi is known as "imperfect fungi" because only the asexual or vegetative phases are known?

The typical fruiting bodies in Basidiomycetes where basidiospores are produced are called:

The edible mushrooms that are consumed by humans belong to which fungal class?

Which fungus is used extensively in genetic and biochemical research?

In the association called mycorrhiza, fungi live symbiotically with: