I would guess D) The man who <span>never says no when they ask him for help, whether the task is large or small. That's one reason he has so many friends. because he does not understand the need to make priorities between different events, making him have to constantly let down friends and try to be at more than one place at one time. </span>
Answer:
Physical barrier
Explanation:
Innate immunity is our first line of defense against invading organisms . inmates immunity include physical barriers, antimicrobial substances, normal flora etc.
The skin and mucosa of stomach and of other organs serve as first line of defense and the function of defense is both mechanical and chemical. The mechanical function involves physical barrier that prevent entry or translocation of organisms. The chemical function include substances that inhibit growth or destroy microbes e.g. gastric acid in the stomach.
40° F or below should be the temperature range be for fresh food.
<h3>What temperature should fresh food be?</h3>
Make sure the freezer is consistently 0° F or below and the temperature is consistently 40° F or below by using an appliance thermometer. Within two hours of cooking or purchasing, refrigerate or freeze meat, poultry, eggs, shellfish, and other perishables. If it is hotter than 90 degrees Fahrenheit outside, refrigerate within an hour. Fresh meat should be kept between 28°F and 32°F for the best storage results. Meat should be kept in the refrigerator's coldest section. Perishability rises as storage temperatures approach 40°F. Bacteria start to multiply quickly at about 50°F.
Thus from above conclusion we can say that 40° F or below should be the temperature range be for fresh food.
Learn more about the temperature here:
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1. ozone depletion occurs when chlorofluorocarbons (CFCs) and halons are released into the atmosphere
2. the ozone layer acts as a shield for life on Earth. Ozone is good at trapping a type of radiation called ultraviolet radiation, or UV light, which can penetrate organisms protective layers, like skin, damaging DNA molecules in plants and animals
