| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.59 |
| Score | 0% | 72% |
Which of the following is the smallest component of an element that still retains the properties of the element?
element |
|
atom |
|
molecule |
|
neutron |
An atom is the smallest component of an element that still retains the properties of the element.
In the metric system, what prefix represents 103?
milli |
|
kilo |
|
centi |
|
mega |
Kilo is the metric system prefix for 103.
Large, puffy, mid-altitude clouds with a flat base and a rounded top describe which of the following?
cirrus clouds |
|
fog |
|
cumulus clouds |
|
stratus clouds |
Cumulus clouds are large, puffy, mid-altitude clouds with a flat base and a rounded top. These clouds grow upward and can develop into a cumulonimbus or thunderstorm cloud.
An air mass is a large body of air that has which of the following characteristics?
all of these |
|
similar temperature |
|
similar density |
|
similar moisture |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
Which of these digestive enzymes is not produced by the pancreas?
lipase |
|
trypsin |
|
gastric acid |
|
pancreatic amylase |
The acids produced by the pancreas contain several enzymes that aid in digestion. Lipase converts fat to glycerol and fatty acids. Pancreatic amylase breaks down complex carbohydrates into simple sugars. Trypsin converts polypeptides (the building blocks of protein) into amino acids.