| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.35 |
| Score | 0% | 67% |
Minerals, vitamins, and fiber are:
carbohydrates |
|
micronutrients |
|
proteins |
|
macronutrients |
Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.
As a cold front moves into an area, the heavier cool air __________ the lighter warm air that it is replacing.
mixes with |
|
pushes above |
|
pushes under |
|
cancels out |
A cold front is a warm-cold air boundary with the colder air replacing the warmer. As a cold front moves into an area, the heavier cool air pushes under the lighter warm air that it is replacing. The warm air becomes cooler as it rises and, if the rising air is humid enough, the water vapor it contains will condense into clouds and precipitation may fall.
When compared to eukaryotic cells, prokaryotic cells are:
more complex |
|
similarly complex |
|
none of these |
|
less complex |
Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.
This skeletal system is common in arthropods like insects, spiders, and crustaceans.
bone |
|
exoskeleton |
|
endoskeleton |
|
vertebrate |
An exoskeleton (external skeleton) is common in arthropods like insects, spiders, and crustaceans.
In the heart, blood flows from the right __________ to the lungs then back to the heart via the left __________.
atrium, ventricle |
|
ventricle, atrium |
|
atrium, atrium |
|
ventricle, ventricle |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.