| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Which of the following temperatures is least like the others?
0K |
|
32°F |
|
absolute zero |
|
-273°C |
Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.
The number system most used in science is the:
American system |
|
English system |
|
metric system |
|
British system |
The metric system is a number system that designates one base unit for each type of measurement. For example, the base unit for length is the meter and the base unit for mass is the gram.
In the classification of life, which of the following is not a kingdom?
animals |
|
bacteria |
|
plants |
|
fungi |
Below domain, life is classified into six kingdoms: plants, animals, archaebacteria, eubacteria, and fungi. The last kingdom, protists, include all microscopic organisms that are not bacteria, animals, plants or fungi. (Archaebacteria and eubacteria are sometimes combined into a single kingdom, monera.)
Velocity is the rate at which an object changes position. What is the formula for velocity?
none of these |
|
\(\vec{v} = { \vec{d} \over t } \) |
|
\(\vec{v} = \vec{d}t \) |
|
\(\vec{v} = { t \over \vec{d} } \) |
Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)
The Rh factor antigen in blood determines:
universal recipient status |
|
universal donor status |
|
blood type |
|
postive or negative |
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.