| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.61 |
| Score | 0% | 72% |
A human heart consists of how many chambers?
4 |
|
8 |
|
1 |
|
2 |
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.
Which of the following is not a base unit in the metric system?
meter |
|
degree Fahrenheit |
|
liter |
|
gram |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.
__________ and __________ pair to strengthen bones.
iron, calcium |
|
vitamin D, magnesium |
|
vitamin D, calcium |
|
calcium, vitamin A |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
The gravitational interaction of Earth and the Moon is responsible for which of these?
day and night cycle |
|
the northern lights |
|
seasons |
|
tides |
Tides are caused by the gravitational interaction of Earth and the Moon.
During digestion, after proteins are broken down where does the undigested food go next?
large intestine |
|
stomach |
|
small intestine |
|
esophagus |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.