The food substances that are stored in readilness for time of food shortages are

Explanation

In Biology, organisms need food to survive. Sometimes, there may be a shortage of food. To overcome this, organisms store food substances to use during times of scarcity. The question is asking which food substances are stored in readiness for times of food shortages. The options given are carbohydrates, fats and oils, proteins, and vitamins. The correct answer is option A, which is carbohydrates. Carbohydrates are stored in the body in the form of glycogen, which is a complex carbohydrate made up of many glucose molecules. Glycogen is stored in the liver and muscles and can be broken down into glucose to provide energy for the body when there is a shortage of food. While fats and oils can also be stored in the body, they are not stored specifically for times of food shortages. Proteins are not an ideal energy source because they are primarily used for growth and repair of tissues. Vitamins are essential nutrients that the body needs to function, but they are not stored in large amounts for times of food shortages. It is important to note that while carbohydrates are the main energy source stored for times of food shortages, fats and oils can also be broken down into energy when needed. In conclusion, the food substances that are stored in readiness for times of food shortages are carbohydrates, specifically in the form of glycogen.