Tcs food must be cooled to what temperature in the first two hours

TCS food must be cooled from 135 to 70 DEGREE FAHRENHEIT in the first two hours.
TCS foods are those foods which require time-temperature control in order to prevent the growth of microbes and production of toxins in the foods. These foods are more likely to become unsafe than other foods because they allow rapid growth of micro organism. 

The answer is ozone layer.

Holozoic nutrition refers to the regular animal nutrition mode whereas saprophytic nutrition refers to the nutrition mode of fungi and bacteria.