<span>Nasal insufflation, also commonly referred to as snorting, is the inhalation of a crushed or powdered substance through the nose. It leads to a number of problems including perforation of the nasal septum, irritation of the nasal cavity, nose bleeds, and loss of smell.</span>
The activation energy stands as a sort of a barrier between reactants and products and is shown by the letter E.
<h3>What is activation energy?</h3>
The activation energy is the energy that must be supplied in order for a reaction to proceed forward.
The activation energy stands as a sort of a barrier between reactants and products and is shown by the letter E in a diagram of an enzyme controlled reaction.
Enzymes tend to decrease the activation energy by providing an alternative path for the reaction.
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If you are asking what it is made out it is chitin. The exoskeleton is a tough, resilient integument made from chitin that is stiffened by minerals and other materials.
Answer:
They lived from the pleistocene to the early holocene epoch about 10,000 years ago million of years after the dinosaurs went extinct.