After spending approximately 40 weeks inside the womb, the average newborn weighs 7 1/2 pounds. Most babies weigh between 5 1/2 and 10 pounds. The average length of a newborn is 20 inches (50 centimeters), with a range of 18 to 22 inches. The average head circumference (the distance around the head) is 14 inches (35 centimeters).
Lactobacillus and Bifidobacterium are the most common probiotic bacteria. The Lactobacillus genus has 18 different bacteria strains, while the Bifidobacterium genus consists of eight strains.
Types of Harmful Bacteria. Gardeners refer to beneficial soil bacteria as probiotics. Harmful bacteria are called proteobacteria. A very large group, proteobacteria includes many bacteria that also affect humans, such as Vibro cholarae, the root cause of cholera.eneficial bacteria can be fixed into the soil to help reduce harmful bacteria. In most instances of bacterium-based disease, the recommended action is to avoid planting the specific species of plant affected for several seasons in the affected area.