| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.45 |
| Score | 0% | 69% |
The gravitational interaction of Earth and the Moon is responsible for which of these?
the northern lights |
|
day and night cycle |
|
seasons |
|
tides |
Tides are caused by the gravitational interaction of Earth and the Moon.
Which part of the respiratory system helps protect against infection?
nasal cavity |
|
trachea |
|
pharynx |
|
epiglottis |
After air enters through the nose, it passes through the nasal cavity which filters, moistens, and warms it. Further filtering takes place in the pharynx, which also helps protect against infection, and then in the trachea which is just past the epiglottis, responsible for preventing food from entering the airway.
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.
Which of these is not a phase in cell division?
megaphase |
|
interphase |
|
anaphase |
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cytokinesis |
Cell division is the process by which cells replicate genetic material in the nucleus and consists of several phases, beginning with interphase and ending with cytokinesis.
As part of digestion, the liver produces bile which breaks down:
starches |
|
protein |
|
sugars |
|
fat |
The liver produces bile which emulsifies (separates) fat.