Through the human introduction of invasive species and forced migration of various species such as pack mules, elk, and hog-nosed skunks into the Kaibab squirrels' habitat, scientists hypothesize two outcomes that might occur to the squirrel population. Examine the following null hypotheses formulated to explain rates of speciation and extinction of the Kaibab squirrel population as an influx of species continues to migrate into their niche. Null Hypothesis: The rate of speciation (C) remains steady when species compete for available resources while all will continue toward extinction (B). Which of the following graphically depicts the alternative hypotheses?

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Essential nutrients

These are the organic compounds present in the food that provide nourishment essential for the development and growth of our body. Nutrients not only provide us with the required energy to carry out various biological processes but are also the building blocks for repair and growth in our bodies.

Vitamins

The vitamins are organic molecules required in low concentration for the proper functioning of the body. They cannot be generated in the organism and are taken into the body through the diet. The lack of proper vitamins results in diverse deficiency disorders. They are thus called essential nutrients. The important vitamins are vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, and vitamin E.