In 1968, Brezhnev ordered the soviet army and troops of other eastern European nations to crush a liberal communist regime in : B. Czechoslovakia
He ordered about 500,000 troops to invade Czechoslovakian Borders using the Blitzkrieg approach
hope this helps
The correct answer is lipase activity in the large intestine.
Triglycerides are the main components of body fat and human skin oils. Lipases are enzymes which break down the fats or lipids in the body. They are responsible for the digestion and general processing of triglycerides. There are several different lipases in the human body, pancreatic lipase acting in the small intestine, hepatic lipase, lipase acting in the endothelium and lipase in the bile acid.
Answer:
Dark color absorb more photons and thus gets more hot
Explanation:
Dark color is dark b/c it absorbs different wavelengths of light (think about little photons of light vibrating slighting differently) .This means it absorbs a lot of photons which makes it warmer.
If a thing is white, that means it reflects all lights and absorbs none. Thus, since it does not absorb photons (little packets of energy which is light), the house does not get warm.
Striated muscles contain repeating sarcomeres of overlapping arrays of long, thin actin and thicker myosin filaments. Myosin filaments contains the myosin heads, which are enzymes that can bind to actin, split and make use of the energy from ATP. When muscle contraction starts, myosin heads bind to actin, change their configuration on actin, liberating the products of ATP hydrolysis and causing slide of the actin and myosin filaments. The action of the proteins troponin and tropomyosin on the actin filaments regulates vertebrae striated muscle contraction. The release of calcium ions from the sarcoplasmic reticulum is triggered by the nervous stimulation which causes depolarization of muscle membrane. Calcium ions bind to troponin and thus cause or allow the tropomyosin strands on the actin filament to move so that the part of the actin surface where myosin heads need to bind is uncovered. Contraction then occurs and only stops when the sarcoplasmic reticulum pumps calcium out of the muscle interior.
So basically, what triggers the uncovering of the myosin binding site on actin is the calcium ions binding to troponin and changing configuration.
