Beta-adrenergic blockers will reduce the heart's demand for oxygen
⇒ aids the performer in preparing physiologically for exercise reducing the chance of joint and muscle injury.
⇒ prepared the body for exercising the blood flow to the muscles allowing them to loosen up which can raise the flow of oxygen to muscle cells.
A type of nonverbal cummunucation that we use quite often is writing or typing and is commonly used.
-Alisa
Hoped this helped ^.^
Google a picture of the two and you will see. Hedgehogs have smaller needles that dont come off their body and can roll into a ball. Porky pines have barbed long spikes that can be ejected into its pray.