Answer:
chemical reactions change reactant and produce new substance called products.
Explanation:
chemical reaction is a change which will produce a new substance. ( while physical reaction does not produce a new substance.
The main responsible for the delay among the atrial and
ventricular contractions is the action potential conduction velocity of the AV
node cells. If the atria and ventricles contract simultaneously, atria cannot
give any help in filling the ventricles, which is needed, especially in those
with stiff ventricles as in the elderly. Hence atria have to contract first and
then the ventricles.
Its False because the main source of carbohydrates is bread and rice so the answer is b.False :))
i hope this be helpful
a nurse must check for blood return. prior to any administration of drug via implanted port it is crucial that nurse for any blood return. if there is no any blood return nurse should hold the drug until patency is obtained established again.
Answer:
Ribosomes.
Explanation:
The function of ribosomes is to make protiens by joining amino acids together.
