Mysterious signals to bees. Some flowers attract bees with invisible to us colors and special signs. Wild flower begonia looks white to us, and for the bee â blue-green. Bees distinguish ultra-violet rays, which our eyes do not perceive. They see the pattern on the flower evening primrose, which we are not able to distinguish.
Osteoarthritis. A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage.
Arthritis literally means inflammation of a joint.. In some forms of arthritis, such as osteoarthritis, the inflammation arises because the smooth covering (articular cartilage) on the ends of bones become damaged or worn. Osteoarthritis is usually found in one, usually weightbearing, joint.In other forms of arthritis, such as rheumatoid arthritis, the joint lining becomes inflamed as part of a disease process that affects the entire body.Some other types of arthritis are: seronegative spondyloarthropathies, crytalline deposition diseases, and septic arthritis.he most common type of arthritis is osteoarthritis. It results from overuse, trauma, or the degeneration of the joint cartilage that takes place with age. Osteoarthritis is often more painful in joints that bear weight, such as the knee, hip, and spine, rather than in the wrist, elbow, and shoulder joints.