Importance and Value of Trees. Since the beginning, trees have furnished us with two of lifeâs essentials, food and oxygen. As we evolved, they provided additional necessities such as shelter, medicine, and tools. Today, their value continues to increase and more benefits of trees are being discovered as their role expands to satisfy the needs created by our modern lifestyles.
There are diseases that can be transferred to humans from psittacine birds, such as parrots and budgies, such as a viral infection. In addition, people can also show an allergic reaction to feathers and other bird products.
Mad Cow Disease is the common term for Bovine Spongiform Encepholopathy (BSE), a progressive neurological disorder of cattle which can be transmitted to other species, including humans. In humans, it is called Creutzfeldt-Jakob Disease, after the two doctors who first described the symptoms of the disease.he disease in cattle is called Bovine Spongiform Encepholopathy because this form of the disease occurs in cows (therefore, the term bovine), it causes a sponge-like destruction of the brain (therefore, the term spongiform encepholopathy-enceph means. and pathy means.