D. strings because if you have a ¨concert band¨ with strings in it then it is called an orchestra.
The Major function of the respiratory system is to exchange oxygen and carbon dioxide. Inhaled oxygen enters the lungs and reaches the alveoli, the layers of the cells lining the alveoli and the surrounding capillaries are each only one cell thick and are in very close contact with each other, the barrier between air and blood averages about 1 micron in thickness. Oxygen diffuses quickly through the air-blood barrier into the blood in the capillaries. Similarly, carbon dioxide passes from the blood into the alveoli and is then exhaled.
Enzymes are typically composed of amino acids.
Enzymes specifically binds to their substrate, and accelerate the biological or in-vitro reactions.
Four real-life examples of enzymes are: Lipase, Maltase, DNA ploymerase and Alcohol dehydrogenase.
Explanation:
All enzymes are proteins. They are composed of amino acids as monomer units linked by polypeptide bonds.
The substrate is a molecule which has specific enzyme binding sites for the highly specific enzyme called as active sites. With this binding, the enzyme-substrate complex is formed, undergoes the chemical reaction and new product is formed. Enzymes accelerate the biological reactions by lowering the reaction's activation energy.
Four-real life examples of enzymes are:
Lipase enzyme: catalyses the hydrolysis of fats and triglycerides in the small intestine. Lipase enzyme is secreted by pancreas.
Maltase enzyme: catalyses the breakdown of maltose sugar. It is secreted by salivary glands and our mouths.
DNA Polymerase Enzyme: It catalyses the DNA replication in the cells. It is secreted by the nucleus
Alcohol dehydrogenase: It catalyses many reactions in the body as the reduction of NAD to NADH. It is secreted by the liver.
1 AU is 149597871 kilometers.
We solve
This gives us .3897114284... AU away from the sun.
Explanation:
Before explaining the following phenomenon, it is good to clarify one thing: the laws of thermodynamics are fulfilled and cold water usually freezes faster than hot water. However, and although it seems counterintuitive, it has been observed for centuries that this fact is not always fulfilled and under certain circumstances, hot water freezes before cold water. Aristotle was the first to record this phenomenon, but it was not published as a scientific observation until 1969 by Erasto Mpemba. Precisely due to the surname of the scientist born in British Tanganyika, this phenomenon is known as the Mpemba effect. A curious effect that has recently been having an impact due to a new viral called "boiling water challenge" and consists of throwing boiling water into the air to see how it quickly freezes and turns into snow.