<span>To defend cardiac output (the amount of blood your heart pumps out per minute), your heart can compensate by beating faster in order to pump out more blood per beat.</span>
Chitin is a long-chain polymer derived from glucose. It strengthens cell walls of fungi and the outer covering (exoskeleton) of arthropods (including crabs, shrimps, and insects).
Because if we use too much coal we are wasting fossil fuels and burning coal hurts the environment so the alternative energy sources provide clean energy