Why does a specific enzyme catalyze a specific reaction? Since the substrate must fit into the active site of the enzyme before catalysis can occur, only properly designed molecules can serve as substrates for a specific enzyme; in many cases, an enzyme will react with only one naturally occurring molecule. Does the active site of […]
What was the first major of the Civil War?
What was the first major of the Civil War? First Battle of Bull Run First Battle of Bull Run by Kurz & Allison Known in the north as the Battle of Bull Run and in the South as the Battle of Manassas, this battle, fought on July 21 1861 in Virginia was the first major […]
What role does the crayfish play in the food chain?
What role does the crayfish play in the food chain? In an extreme situation, they can seriously reduce or even eliminate other animals and plants from the ecosystem. Hence, crayfish often act as keystone predators and serve as major conduits of energy and materials in complex food webs. Is a crayfish a producer consumer or […]
What are cities named after Alexander the Great?
What are cities named after Alexander the Great? Modern Afghanistan Alexandria Ariana, now Herat. Alexandria Prophthasia, perhaps Farah, Afghanistan. Alexandria Arachosia, now Kandahar. Alexandria in the Caucasus, now Bagram. Alexandria on the Oxus or Alexandria Oxiana, probably Ai-Khanoum. Alexandria in Opiania, Ghazni. Nikaia or Nicaea, at or near Jalalabad. How many cities are still named […]
Does acceleration due to gravity affect weight?
Does acceleration due to gravity affect weight? The weight W, or gravitational force, is then just the mass of an object times the gravitational acceleration. Since the gravitational constant (g) depends on the square of the distance from the center of the earth, the weight of an object decreases with altitude. What happens when acceleration […]
What is the difference between the feudal system and the feudal contract?
What is the difference between the feudal system and the feudal contract? In this economic and political system of rule called Feudalism, greater lords divided their landholdings among vassals. A fief was an estate bestowed upon a vassal by a greater lord. Under a feudal contract, vassals were granted a fief that included peasants to […]
What is the value of N in math?
What is the value of N in math? In an equation, N represents a specific number, not any number. N + 9 = 12 means N is a number which, when added to 9, must give the answer 12. So N can only be the number 3 because only 3 + 9 is equal to […]
When did Piye die?
When did Piye die? 714 BC Piye/Date of death When did Piye become pharaoh of Egypt? Piye Reign 744–714 BC (25th Dynasty) Predecessor Kashta Successor Shebitku show Royal titulary Who ruled after Piye? In 716 B.C.E. Piye died after a reign of over thirty years. He was buried in an Egyptian style pyramid tomb at […]
Which method is recommended for climbing a tree to enter and elevated stand?
Which method is recommended for climbing a tree to enter and elevated stand? When climbing into or out of a tree stand, always use three points of contact with your hands and feet. Keep a firm hold on the climbing system as you enter or leave a platform, and don’t let go until you’re certain […]
What is the basic of an element?
What is the basic of an element? An atom is the basic unit of a chemical element. Atoms are made out of three main parts: protons, neutrons and electrons. Protons and neutrons are contained inside the very center of the atom, which is called the nucleus. Is molecule a basic particle of an element? A […]