| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.71 |
| Score | 0% | 54% |
In the pancreas, lipase converts fat to:
amino acids |
|
glycerol and fatty acids |
|
simple sugars |
|
complex carbohydrates |
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.
When the clouds become too saturated with water, the water is released as precipitation in the form of:
snow or ice |
|
ice |
|
snow |
|
rain |
Rising into the atmosphere, the water condenses into clouds. When the clouds become too saturated with water, the water is released as snow or ice precipitation which may warm as it falls to reach Earth as rain.
212°F is how many °C?
100 |
|
\(135 {5 \over 9}\) |
|
0 |
|
-100 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)
The fossil record is a product of which period of Earth's history?
Cretaceous |
|
Cambrian |
|
Jurassic |
|
Cenozoic |
The Cambrian period is one of the most significant geological time periods. Lasting about 53 million years, it marked a dramatic burst of changes in life on Earth known as the Cambrian Explosion. It is from this period that the majority of the history of life on Earth, as documented by fossils, is found. Called the fossil record, the layering of these mineralized imprints of organisms preserved in sedementary rock have allowed geologists to build a historical record of plant and animal life on Earth.
In the food chain, omnivores may be which of the following?
secondary or tertiary consumers |
|
secondary consumers or scavengers |
|
primary or secondary consumers |
|
primary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.