| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.87 |
| Score | 0% | 57% |
In fermentation, what replaces oxygen in anaerobic respiration?
lactic acid or alcohol |
|
ascorbic acid or peptides |
|
starches |
|
water |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.
Antigens in the blood determine:
blood type |
|
negative or positive status |
|
blood oxygen capacity |
|
Rh factor |
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?
angle of incidence |
|
refractive index |
|
90° |
|
focal point |
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.
As part of digestion, the liver produces bile which breaks down:
protein |
|
sugars |
|
fat |
|
starches |
The liver produces bile which emulsifies (separates) fat.
Earth's history is divided into time periods, which of these is the shortest time period?
period |
|
age |
|
eon |
|
epoch |
The Earth is approximately 4.6 billion years old and its history is divided into time periods based on the events that took place and the forms of life that were dominant during those periods. The largest graduation of time is the eon and each eon is subdivided into eras, eras into periods, periods into epochs, and epochs into ages.