Yeast infections of your pet's internal organs. Symptoms of internal fungal infections of the lungs and other organs are quite varied. With respiratory involvement, lethargy, fever, coughing, and difficulty breathing, as well as purulent and/or bloody nasal discharge may be seen.
August Weismann, in full August Friedrich Leopold Weismann, (born January 17, 1834, Frankfurt am Mainâdied November 5, 1914, Freiburg im Breisgau, Germany), German biologist and one of the founders of the science of genetics, who is best known for his opposition to the doctrine of the inheritance of acquired traits and for his âgerm plasmâ theory, the forerunner of DNA theory.
Accidental theories of aging rely on chance-the notion that organisms get older by a series of random events. Examples are DNA damage from free radicals or just the wear and tear of daily life. Here are the four principal theories of aging, each of which accounts for some aspects of the process. 1) WEAR AND TEAR THEORY. Dr. August Weismann, a German biologist, first introduced this theory in 1882. He believed that the body and its cells were damaged by overuse and abuse.