In most survival situations you are burning more calories than normal and you will reach exhaustion quickly within a couple days without food. There is rarely enough plants, berrries, nuts, etc. to provide the estimated 3000 - 6000 calories your body may need, and so fish and meat usually become the main solution. Without calories almost everyone becomes lethargic, uncaring, and hopeless, usually sooner than later.
FOOD.....
Always. It's essential for survival
Food, water and shelter
So you have less of a chance of dying.....
they filter food from the water so the food comes to them
Water, and Food! ;D
so they have less chance of dying
so it doesn't die.
Food production is important for survival. People cannot live without food. The species would die out of food was no longer produced.
most important:ability to get food least important:whether it is a male or female
people rely on resources to survival,there will be no water and food without resource
people rely on resources to survival,there will be no water and food without resource