| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
During digestion, after proteins are broken down where does the undigested food go next?
large intestine |
|
small intestine |
|
esophagus |
|
stomach |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Leafy vegetables, beans, potatoes, fruits, and whole grains are good sources of:
fiber |
|
protein |
|
unsaturated fat |
|
saturated fat |
Fiber provides bulk to help the large intestine carry away waste. Good sources of fiber are leafy vegetables, beans, potatoes, fruits, and whole grains.
The rate of vibration of sound is called:
volume |
|
amplitude |
|
period |
|
frequency |
The rate of vibration of sound is called frequency and is measured in hertz (Hz). One hertz is one repetition per second and sounds with high frequency have a higher pitch than sounds with lower frequency. Humans can hear sounds in the range of 20 Hz to 20 kHz.
Poor balance could indicate an issue with which part of the nervous system?
cerebellum |
|
spinal cord |
|
cerebrum |
|
medulla |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.
-40°F is how many °C?
-40 |
|
-8 |
|
\({40 \over 9}\) |
|
\(-{40 \over 9}\) |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (-40 - 32)\)
\(C° = {5 \over 9} (-72) = {{-72 \times 5} \over 9}\)
\(C° = {-360 \over 9}\)
\(C° = -40\)