Possible various dead animals come close. But that's if you eat the bones, organs, brains, etc.(nearly every part of it). "Need" is very subjective to. There are things in foods like green tea for example that are not necessarily a biological necessity but may have significant health benefits.
Milk...Milk has all of the nutrients required to live, you can actually live off whole milk
there is no food that provides all the nutrients but having a balance between the food groups would provide the nutrients
All foods do. The content in processed foods tends to be much lower than in the unprocessed foods. The egg yolk is an example of a very nutrient dense unprocessed food.
By eating a varied diet.
a balanced diet
YES, Bannas
milk
By eating a varied diet.
By eating a balanced diet. If you can get organically-grown food and meat that is raised naturally, it could farther insure that you are getting the nutrients you need. Another way to ensure your body get's the vitamins and minerals it needs is to take supplements.
what is the main nutrient the body needs
Macronutrients make up the bulk of what we eat, they are the energy-giving component of what we eat, like the proteins, carbohydrates, and fats. Micronutrients are the components of what we eat that are essential to good health. Examples, are vitamins and minerals.
For the chemical reactions involved in releasing energy from other nutrients. to make our bodies more heathly and to make us strong. It also makes our body immune to colds.
Because the body produces these for cell membranes on its own.
carbohydrates
You can find help from www.ediets.com/. You can look on this website and then figure out which diet would work best with you and your body to make sure it gets the needed nutrients.
Food is what gives the body the essential nutrients it needs. The food itself does not make you grow, the nutrients are what is used by the body to power its growth.
by absorbs in the sunlight and the nutrients needed for the plant or plants to survive
Both yes and no. You are not being a part of thousands upon thousands of animals being killed a day for humans to eat. But then again, meat is very important for the human body, we need meat for protein, calories, etc. Just make sure you are still being healthy and getting needed nutrients.
to make protiens