We also add a single amino acid to each batch of decarboxylase broth. The three amino acids we test in our decarboxylase media are arginine, lysine, and ornithine. The decarboxylase test is useful for differentiating the Enterobacteriaceae.
The shock of a basket or a dunk is absorbed by the connecting part, so that the rim goes back to a horizontal position once again. The top of the hoop is 10 feet above the ground. Regulation backboards are 6 feet wide (72 inches) by 42 inches tall. All basketball rims (hoops) are 18 inches in diameter. The inner rectangle on the backboard is 24 inches wide by 18 inches tall.
Basketball courts come in different sizes and colors. In the NBA, the court is 94 feet (29 m) by 50 feet (15 m). Under International Basketball Federation (FIBA) rules, the court is minutely smaller, measuring exactly 28 metres (92 ft) by 15 metres (49 ft). The FIBA three-point line is 2.95 ft (0.90 m) from the sideline in a zone starting at the baseline and ending when it crosses the 22.1 ft (6.75 m) arc. The 21.65 ft (6.60 m) measurement applies only at a point where a line parallel to the baseline intersects the long axis of the court and the center of the basket.