A source of energy that also serves as a carrier for certain vitamins is Fat.
Vitamins falls into two categories that is fat soluble and water soluble. The fat soluble vitamins are A,D, E, and K. Being fat soluble means that they are absorbed in the lymph, are transported in the blood with carrier proteins, and they can be stored in the liver and fatty tissues. Fats is the body's most concentrated source of energy, providing more than twice as much potential energy as carbohydrate or protein. During exercise stored fat in the body are broken down to fatty acids.
Its expensive because, Emeralds are super hard to find today, but Ameythyses are found easly in gemstone mines.
The evidence would be all the different types of species
Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
Autonomy vs shame and doubt
The autonomy vs shame and doubt age is a phase during the development of children. It occurs between the ages of 18 months and three years old. During this stage, the children start to become more independent and start making some of their own decisions. These decisions include what to wear, what to eat and what to play with. Having overbearing parents hinders the development of this stage of development.