Answer:
B. we continue to grow new neurons, but we grow fewer new neurons than when we are young.
Explanation:
Scientists have now discovered that you can grow new brain cells throughout your entire life. The process is called neurogenesis. Specifically, new brain cells–which are called neurons.
Hope this helps.
Answer:
<u>Laboratory experimentation</u><u>.</u><u> </u><u>is </u><u>answer</u>
Pinche perro rabioso. Hipas penes y pitos largos and the answer is c
Answer:
Arrow B should point to the organ.
Arrow C should be reversed.
wow you must have waited along time and probably got threw
with this
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.
