Because the gravity of the sun keeps all planets in their orbits :3 hope I helped
False. Sometimes pushing yourself can help your mind to tell itself "I can do this!" Besides, sometimes pain is a great motivator!
Carbohydrates give energy to the body.
Hope this helps!!
A- tectonic plate motion caused the Atlantic Ocean basin to increase in size
It is because of the different neurotransmitters and their receptors.
Sympathetic stimulation of arterioles in skeletal muscle is mediated by epinephrine acting on its β-adrenergic receptors.
Sympathetic stimulation of vasoconstriction occurs as a result of activation of α-1 adrenergic receptors by norepinephrine released by post-ganglionic sympathetic neurons.
