| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.87 |
| Score | 0% | 57% |
As part of digestion, the liver produces bile which breaks down:
protein |
|
fat |
|
sugars |
|
starches |
The liver produces bile which emulsifies (separates) fat.
Which of the following does not represent the freezing point of water?
0°C |
|
0°F |
|
32°F |
|
273K |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.
Generally, an atom has __________ negative electrons orbiting the nucleus as it does positive protons inside.
double the number of |
|
more |
|
equal numbers of |
|
fewer |
An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.
The Rh factor antigen in blood determines:
blood type |
|
universal recipient status |
|
postive or negative |
|
universal donor status |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.
The angle of reflection is equal to which the following?
refractive index |
|
focal point |
|
90° |
|
angle of incidence |
The law of reflection specifies how waves, including light waves, bounce off of surfaces. Specifically, the angle of incidence of the approaching wave is equal to the angle of reflection of the reflected wave as measured from a line perpendicular (90°) to the surface.