Viruses were classified into seven classes by ______

According to David Baltimore, the viruses are classified into ……………… classes.

Carbohydrates are classified into three major classes : monosaccharide, oligosaccharide and polysaccharides. What are polysaccharide ?

On what grounds the bryophytes are classified into various classes? Name them with examples.

According to Fritsch, the algae are classified into …………………… classes.

Who classified bryophytes in to 3 classes

In Vedic times living organisms were classified in the following number of classes.

Viruses were first crystallized and isolated by

On what basis the viruses are classified in different groups? List and give a brief description of each group of viruses.