| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Poor balance could indicate an issue with which part of the nervous system?
cerebellum |
|
medulla |
|
cerebrum |
|
spinal cord |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.
What part of the food chain serves only as food for other organisms?
secondary consumers |
|
primary consumers |
|
producers |
|
decomposers |
Producers (autotrophs) serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through chemosynthesis
Which of the following describes the Earth's mantle?
solid |
|
liquid |
|
primarily liquid |
|
primarily solid |
Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.
These clouds grow upward and can develop into cumulonimbus or thunderstorm clouds.
cirrus clouds |
|
cumulus clouds |
|
nimbus 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.
In the pancreas, lipase converts fat to:
amino acids |
|
simple sugars |
|
complex carbohydrates |
|
glycerol and fatty acids |
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.