Answer:
Midpiece.
Explanation:
Sperm is the male gamete or reproductive cell. Sperm cells are haploid cell that cannot divide further and fuse with the ova cell to produce a diploid zygote.
The human sperm is divided into three parts- head, midpiece and tail. The mitochondria is present in the midpiece of sperm cell. Mitochondria provide energy to the sperm cell.
Thus, the correct answer is option (B).
Answer:
caused by a genetic defect on chromosome 4. The defect causes a part of DNA to occur many more times than it is supposed to. This defect is called a CAG repeat
Explanation:
Answer:By the 1700s, dentistry had become a more defined profession. In 1723, Pierre Fauchard, a French surgeon credited as the Father of Modern Dentistry, published his influential book, The Surgeon Dentist, a Treatise on Teeth, which for the first time defined a comprehensive system for caring for and treating teeth. Additionally, Fauchard first introduced the idea of dental fillings and the use of dental prosthesis, and he identified that acids from sugar led to tooth decay.
Dentistry is one of the oldest medical professions, dating back to 7000 B.C. with the Indus Valley Civilization. However, it wasn’t until 5000 B.C. that descriptions related to dentistry and tooth decay were available. At the time, a Sumerian text described tooth worms as causing dental decay, an idea that wasn’t proven false until the 1700s!
In ancient Greece, Hippocrates and Aristotle wrote about dentistry, specifically about treating decaying teeth, but it wasn’t until 1530 that the first book entirely devoted to dentistry—The Little Medicinal Book for All Kinds of Diseases and Infirmities of the Teeth—was published.
Explanation:
Answer: when glycogen is withdrawn from diet it is depleted from liver.
Explanation:
When the body gets excess diet in the form of carbohydrates, due to insulin relases the glucose molecules are linked together in a chain, producing longer units, called glycogen. Glycogen is then stored in liver muscles kidney and red blood celss before it is converted to fats.
Glycogen deficiency results in decreased blood sugar levels than normal, which causes glycogen to release by the liver and then break down into glucose. This complex mechanism, called glycogenolysis, helps balance blood sugar levels.The glycogen that is stored in our muscles is not depleted.In other words, once it’s stored in muscle, it’s not capable of being transported to other areas of the body to provide fuel. Hence, the liver stores are depleted first when glycogen is depleted.
