Typically, a prosthetic arm or leg is made from a strong and durable but lightweight material such as carbon fiber, covered with foam padding (for comfort) or flesh-colored plastic. The weight of prosthetic limbs is a very important factor. We don't notice how much our limbs weigh because they feel so natural and seem to move themselves.
Scientific Name for Strep Throat. Strep throat is the most common type of bacterial throat infection; it is caused by group A streptococcus bacteria (GAS for short). The scientific name for strep throat bacteria is Streptococcus pyogenes. This throat infection is most frequently diagnosed during the late fall, winter, and early spring. Symptoms can include fever, white patches of pus on the back of the throat, and a red and painful throat that begins suddenly.
In a gram stain, the Streptococcus pyogenes will be a purple color, indicating that it is a gram positive bacteria. The class Bacilli is a classification of cocci or rod shaped bacteria, and that is what the Streptococcus pyogenes are. Lactobacillales are an order of the gram positive bacteria comprising the lactic acid bacteria. Streptococcus pygenes produces lactic acid, so it is therefore classified under the lactobacillales. Streptococcaceae are gram positive non-sporulating bacteria including many parasitic, pathogenic and saprophytic forms.