| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.64 |
| Score | 0% | 73% |
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
stomach |
|
mouth |
|
large intestine |
|
small intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Absolute zero is which of the following?
the freezing point of hydrogen |
|
the freezing point of oxygen |
|
the coldest temperature possible in the universe |
|
0°C |
In contrast to the Celsius scale (measured in degrees centigrade) that fixes 0° at the freezing point of water and the Fahrenheit scale that uses 32°, the Kelvin scale fixes 0 at absolute zero (-273°C) which is the lowest temperature possible in the universe.
Which of the following is a decomposer?
ferret |
|
mosquito |
|
pine tree |
|
fungi |
Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.
Antigens in the blood determine:
negative or positive status |
|
Rh factor |
|
blood type |
|
blood oxygen capacity |
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.
Which of these is not a recognized blood type?
AB |
|
O |
|
AO |
|
B |
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.