They accumulate a sleep debt. Sleep deprivation, however, is when someone misses out on the sleep, leading to sleep debt.
The mother and her baby are connected by the umbilical cord which is a path way of supply of anything from the mother to the unborn baby so any thing a mother has passes to the baby.
Its B. 13- i just took the test and i got it right.
If you have good cardio respiratory endurance, then you'll be able to do rigorous physical activity for longer amounts of time, because like other muscles in your body, the more you stretch them the stronger they get and the longer they would last.
Hope that helps and makes sense :)
