1. D
2. B
3. B
these are what i would go with sorry if they are wrong :)
REM sleep's function are that it helps in forming new memories, stimulates the central nervous system, and restores brain chemistry to a normal balance
- Karnoven heart rate Ratio Method
Advantages : Easy to do, cost friendly
Disadvantages : can only predict the amount of maximum oxygen intake
-Vo2max
Advantages : this test directly measures body oxygen consumption , the other tests only try to estimate
Disadvantages : Relativiely time consuming and high cost
If it doesn’t have the answer button then that usually just means enough ppl have answered it or has been deleted..
They organ systems as a whole , because without vision it will all go to a waste
