Question

define the following
Algae
Antibodies
Bacteria
Carrier
Communicable diseases
Fermentation
Fungi
Lactobacillus
Microorganism
Nitroge cycle
Nitrogen fixation
Pasteurization
Pathogen
Preservation
Protozoa
Rhizobium
Vaccine
Virus
Yeast

For class 8th chapter microorganisms friend and foe

Answer 1

algae is division of plant kingdom which is photosynthetic unicellular or multicellular and thalloid in structure that is they have root -like , leaf-like and stem- like structures

viruses are not belonging to any kingdoms of the biological classification becoz they r living inside the host and form crystalline non living structures when not living in a host

yeast are unicellular fungi which reproduce through budding

lactobacillus is a bacteria which helps in milk getting converted to curd
they convert lactose into lactic acid

any microorganism which cause diseases are known as pathogens