| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.98 |
| Score | 0% | 60% |
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.
central |
|
somatic |
|
autonomic |
|
peripheral |
Part of the peripheral nervous system, the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
Which of these vitamins doesn't come from food?
C |
|
Potassium |
|
D |
|
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.
Cellular fermentation takes place:
aerobically |
|
anaerobically |
|
in plant cells |
|
in the presence of oxygen |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.
In fermentation, what replaces oxygen in anaerobic respiration?
water |
|
starches |
|
ascorbic acid or peptides |
|
lactic acid or alcohol |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.