Q. Consider the following statements regarding the principles and applications of industrial fermentation technologies for enzyme production:

P. Submerged Fermentation (SmF) is currently the primary commercial method for cultivating both bacteria and filamentous fungi, relying on large stirred-tank bioreactors that can exceed 100 m³ in volume.

Q. In Solid-State Fermentation (SSF), the substrates and nutrients must be completely dissolved in a free-flowing liquid broth to closely mimic the natural ecological niche of filamentous fungi.

R. Industrial enzymes produced via these fermentation methods function as biological catalysts by operating under high temperature and extreme pressure conditions to maximize the rate of chemical reactions.

S. SSF processes frequently utilize moist, solid agro-residues such as wheat bran or molasses, operating with low free water availability which is particularly common for the production of fungal enzymes.

Which of the above statements are strictly correct?

#Question id: 10629

#Unit 10. Ecological Principles

Following are density dependent factors

A- Food                            B- space

Which of the following animal and their most important density dependent limiting factor are correct?

#Question id: 10630

#Unit 10. Ecological Principles

Following is relation between population size with various strategies of species, following is correct figure? 

#Question id: 10631

#Unit 10. Ecological Principles

To estimate the number of foxes m an area, a researcher conducted a mark-recapture survey. In the fast survey, he caught and marked 90 foxes. In his second survey a week later, he caught 120 foxes of which 40 were marked (recaptures). If you are told that the actual number of foxes in this area is 400, which of the following is a plausible explanation for the anomaly in the researcher's data? 

#Question id: 10632

#Unit 10. Ecological Principles

Three different population growth pattern related to population density are shown in figure

#Question id: 10633

#Unit 10. Ecological Principles

Following some characteristic feature of r selected species

A. late maturity

B. Provision of parental care

C. High mortality during early stages of life

D. large clutch size

What is the above combination is correct?

#Question id: 10634

#Unit 10. Ecological Principles

Consider a population which is changing from one generation to the next as per the equation N(t) = R*N(t-1), where N(t) represents the size of the population at time t and R is a constant growth parameter. Under what condition is the population likely to go extinct?