| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.18 |
| Score | 0% | 64% |
Which of these vitamins doesn't come from food?
C |
|
D |
|
Potassium |
|
A |
Vitamins are necessary for a wide variety of bodily processes. Some vitamins like Vitamins A and C come from diet but others, like Vitamin D, are generated in response to sunlight.
Which of the following temperatures is least like the others?
32°F |
|
absolute zero |
|
0K |
|
-273°C |
Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.
The __________ nervous system regulates involuntary activity in the heart, stomach, and intestines.
autonomic |
|
peripheral |
|
somatic |
|
central |
Part of the peripheral nervous system, the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
Which of the following states of matter exists at the highest temperature?
liquid |
|
solid |
|
gas |
|
none of these |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
"For every action, there is an equal and opposite reaction." This describes which of Newton's laws of motion?
third |
|
first |
|
second |
|
fourth |
Newton's third law of motion states that For every action, there is an equal and opposite reaction. When an object exerts a force on another object, the second object exerts a force of equal magnitude in the opposite direction on the first object.