| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.07 |
| Score | 0% | 61% |
An element in the physical state of __________ maintains a constant volume and shape.
gel |
|
liquid |
|
gas |
|
solid |
An element in a solid state has atoms or molecules that are constricted and do not move freely. Solids maintain a constant volume and shape and exist at a lower temperature than liquids or gases.
The __________ nervous system controls voluntary actions.
central |
|
peripheral |
|
autonomic |
|
somatic |
Part of the peripheral nervous system, the somatic nervous system is made up of nerve fibers that send sensory information to the central nervous system and control voluntary actions.
Which of the following represents the largest value?
1 kL |
|
1 mL |
|
1 cL |
|
1 ML |
Mega (M) is 106, kilo (k) is 103, centi (c) is 10-2, milli (m) is 10-3 so 1 ML represents the largest value.
As part of digestion, the liver produces bile which breaks down:
starches |
|
fat |
|
protein |
|
sugars |
The liver produces bile which emulsifies (separates) fat.
The two heart chambers that collect blood are called:
atria |
|
aorta |
|
valves |
|
ventricles |
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.