Which alga is rich in protein?

$(A)$ The shift from grain to meat diets creates more demands for cereals. Why?
$(B)$ $A$ $250 \ kg$ cow produces $200 \ g$ of protein per day, but $250 \ g$ of $Methylophilus \ methylotrophus$ can produce $25 \ \text{tonnes}$ of protein. Name this emerging area of research. Explain its benefits.

In which of the following media are microorganisms $NOT$ cultured for the production of Single Cell Protein $(SCP)$?

Which bacterium has the capacity to produce $25$ tonnes of protein due to its high rate of biomass production and growth?

Torulopsis utilis is

Methylophilus methylotrophus is which type of organism?