Answer:
The basic principle of Darwinism is "survival of the fittest". Darwin's theory stated that all species of an organism develop through the natural selection of small, inherited variations in organisms that increase the individual's ability to compete, survive, and reproduce in the wild.
Darwin's trip to the Galapagos Islands actually was the beginning of his Social Darwinism Theory. During his visit to the islands, Darwin noted that the unique creatures were similar from island to island, but well-adapted to their environments. This led him to ponder the origin of the islands' inhabitants.
Darwin's finches (the Galapagos beaks) are considered to be the world’s fastest-evolving vertebrates. This is because their appearance and behavior quickly adapt to the closed and rapidly changing environment on the Galapagos Islands.
To avoid nutrient deficiency one must have a balanced diet. A balanced diet would be the one which includes all the nutrients. It includes
Macronutrients: carbohydrates (the source of energy), proteins and fats.
Micronutrients: vitamins and minerals.
One should include in their diet the following things: Cereals, pulses, fruits vegetables, milk, meat, oil and fats. The amount of nutrient intake varies with age and amount of physical activity done.
<span>the mitochondria. Hope this helps.</span>