write a note on economic importance of algae.

write a note on importance of gymnosperm.

Lichens are symbiotic association of Algae and Fungi. State the economic importance of Lichens.

a particular flower of a family is characterized by this type of aestivation. identify the family. write the floral formula mention two economic importance of the family

State two economically important uses of a. heterotrophic bacteria b. archaebacteria

Write a note on vitamins.

Write a note on encystation.

State two economically important uses of: Heterotrophic bacteria