Yes it can kill brain cells. if you hold your breath for a short amount of time example 10 seconds it won't do any harm. but if you hold your breath for an extended time like a minute the cells will not get enough oxygen and eventually die. I hope I helped you
Answer:
Pinocytosis is one type of endocytosis, the general process by which cells engulf external substances, gathering them into special membrane-bound vesicles.
Explanation:
Hope that helped!
Answer:
Lack of gravity causes you to use less work to move your muscles.
Explanation:
If on Earth your arm weighs 3 pounds, the muscle will only have to move 3 pounds of force. For example, if you were to go on the moon, your arm would have the same mass but there would be less gravity pulling it dow. So now your muscles only need to pull 1 pound. Over extended periods, you would be working less, thus not using your muscles to fullest potential and in result you would get weaker.
Explanation:
Four images are shown in each set of PET scans to highlight either ,, blood glucose levels ,, cancerous tumour cells ,, whether or not vital organs are working correctly - or if the treatment of what is being given to the patient is working or not . more than one PET image may be taken of a subject's brain to see if the results are reliable and conform to the problem .
( i think ^^ )
