| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
50°F is how many °C?
122 |
|
58 |
|
10 |
|
-10 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (50 - 32)\)
\(C° = {5 \over 9} (18)\)
\(C° = {90 \over 9}\)
\(C° = 10\)
Antigens are found on the outside of which blood cells?
platelets |
|
white |
|
plasma |
|
red |
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 the following members of the food chain are most alike?
scavengers and decomposers |
|
herbivores and autotrophs |
|
primary consumers and omnivores |
|
producers and tertiary consumers |
Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.
In the metric system, what prefix represents 10-3?
kilo |
|
mega |
|
centi |
|
milli |
In the metric system, milli is the prefix for 10-3.
The brain and spinal cord make up the __________ nervous system.
central |
|
autonomic |
|
somatic |
|
peripheral |
The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.