In his test, bacteria that retain the crystal violet dye do so because of a thick layer of peptidoglycan and are called Gram-positive bacteria. In contrast, Gram-negative bacteria do not retain the violet dye and are colored red or pink. Compared with Gram-positive bacteria, Gram-negative bacteria are more resistant against antibodies because of their impenetrable cell wall.
Secondary Conditions. People with disabilities often are at greater risk for health problems that can be prevented. As a result of having a specific type of disability, such as a spinal cord injury, spina bifida, or multiple sclerosis, other physical or mental health conditions can occur. Some of these other health conditions are also called secondary conditions and might include: Bowel or bladder problems.
Tags: Disability, learn disability. Disability Explained. You are classed as disabled if you have a physical or mental impairment which causes a long term adverse effect in carrying out normal day to day activities.Normal day to day activities are such things as being able to feed yourself, take care of your personal hygiene, being able to shop for yourself and walking.ou are classed as disabled if you have a physical or mental impairment which causes a long term adverse effect in carrying out normal day to day activities.