Apart then being the second smallest state in Europe (and the world), Monaco is also the most densely populated country in the world. Smallest Countries In Europe: Monaco. 3. San Marino â 61 km 2 (24 mi 2) â The republic of San Marino is an enclave within Italy and has a population of around 30,000 people.ocated within Rome, the smallest state in Europe has a population of just over 800 people. Smallest Countries In Europe: Vatican City, In the heart of Rome. 2. Monaco â 2.02 km 2 (0.78 mi 2) â The Principality of Monaco achieved full independence from France in 1860.
kerato- or kerat- also cerato- or cerat- pref. 1. Horn; horny: keratosis. 2. Cornea: keratectomy. [Greek kerÄto-, horn, from keras, kerÄt-; see ker- in Indo-European roots.] kerato- or before a vowel kerat- combining form 1. indicating horn or a horny substance: keratin; keratogenous. 2. (Medicine) indicating the cornea: keratoplasty. [from Greek kerat-, keras horn] kerato- a combining form meaning âcorneaâ: keratoplasty.
Chemical Groups. The nitrogen in keratin, along with hydrogen, forms alkaline amino groups (-NH2). The oxygen in keratin, along with hydrogen and carbon, forms carboxylic acid groups (-COOH). Acids and bases interact, forming strong chemical bonds.eratin refers not to one particular substance but to a family of tough, fibrous proteins found in the animal kingdom. Keratin is present in hair, horn, hooves, beaks, shells, fingernails, toenails, and claws. All proteins contain carbon (C), hydrogen (H), nitrogen (N), and oxygen (O).