Vary in the number of neutrons but Sama in the number if protons are called isotopes
Answer:
Your heart changes its rate depending on the activity, so that it can carry blood to your muscles, and therefore it needs to beat stronger if you are performing some exercise, or not so strong if you are sleeping, for example.
Explanation:
Your heart is continuously beating to keep blood circulating throughout your body.
So, here it is why your heart changes its rate: Its rate changes depending on your activity level; it is lower while you are asleep and at rest and higher while you exercise to supply your muscles with enough freshly oxygenated blood to keep the functioning at a high level.
And how: depending on your activity level, your heart has to pump enough blood to your muscles. Blood carries needed oxygen and other nutrients. Muscles need more blood sugar than any other tissue especially when working hard. To supply your muscles with oxygen your heart needs to beat faster, and this builds up your heart muscles.
Sorry I don’t know that one
Answer:
Explanation:
Based on this information we can say that the only two possible maps for this region would be the following
a. ) pm--9--ss--5--bb or bb--14--pm--9--ss
b.) Using these two maps as guides we can also determine that the cross used for each individual map would be a two-point test cross between ss and bb. With these results you can determine that if the distance is 5 mu then the first map (pm--9--ss--5--bb) is ultimately correct, otherwise, if the distance is 23 mu , the second map (bb--14--pm--9--ss) is correct
Answer:
a Jackson rivaI
it is because the use of word make it sound as if they are a rival