Macronutrients can be defined as the compounds which can be found in large quantities in the human diet. Majority of the energy for the functioning of the body is derived from these macronutrients. These includes the fats, carbohydrates, and the proteins.
Micronutrients can be defined as the compounds which are required by the body in small quantities, but they are essential for the proper growth of the body. These includes the vitamins and minerals.
Hence, the given food and the nutrient groups can be matched as follows:
Macronutrients - Carbohydrates, proteins, fats.
Micronutrients - Zinc, calcium.
Our elbow bends all the time, we bend it when we pick up things, when we eat, when we do mostly everything. Cows on the other hand dont pick up food with there feet, they use there mouths, and they probably only bend when they are walking.
Symbiosis can vary between mutualism, parasitism, and commensalism, tho these grade into each other, it is often difficult to tell which is involved in a given relationship.
