2) The fleas life cycle discussed - the flea life cycle diagram explained in full. 2a) Fleas life cycle 1 - The adult flea lays her eggs on the host animal. 2b) Fleas life cycle 2 - The egg falls off the animal's skin and into the local environment of the host animal. 2c) Fleas life cycle 3 - The flea egg hatches, releasing a first stage (stage 1) flea larva.
What is the Black Lung Benefits Act? The federal government established the Black Lung Benefits Act to assist coal miners who have developed pneumoconiosis, known as Black Lung Disease. The act provides monthly payments and medical benefits to coal miners who are totally disabled by the disease.
Definition. Black lung disease is the common name for coal workers' pneumoconiosis (CWP) or anthracosis, a lung disease of older workers in the coal industry, caused by inhalation, over many years, of small amounts of coal dust.reathing the dust causes silicosis, a severe disease that can scar the lungs. X rays can detect black lung disease before it causes any symptoms. If exposure to the dust is stopped at that point, progression of the disease may be prevented.