The correct answer is: by analyzing her average test scores after nights with different amounts of sleep.
This is the best way to approve her hypothesis, because she can compare the results of the tests influenced by different amounts of sleep.
The independent variable (the one that is changed by the scientist) in this hypothesis would be hours of sleep. The dependent variable (the one that is observed and that responds to the change made by the independent variable) would be result of test.
The answer is 0.11
to 0.20 level. In US it is legal to drive with a blood alcohol content of
0.08 level. The alcohol works in boy of the person and they will eventually
lose their balance easily and it also affects their vision the vision will be
blurry. Another thing is they will have trouble sensing things the hearing,
tasting and feeling will be confused.
That's weird, they all are...
Answer:
a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring.
