| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.56 |
| Score | 0% | 71% |
Which of these is not a recognized blood type?
AO |
|
B |
|
AB |
|
O |
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.
Water freezing or boiling is an example of which of the following?
phase transition |
|
sublimation |
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heating |
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cooling |
A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.
In the metric system, what prefix represents 10-3?
kilo |
|
centi |
|
mega |
|
milli |
In the metric system, milli is the prefix for 10-3.
Scavengers break down the dead bodies of plants and animals into which of the following?
simple nutrients |
|
producers |
|
carrion |
|
complex carbohydrates |
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 taxonomy, domains are the broadest classification of life. How many domains are there?
6 |
|
dozens |
|
3 |
|
5 |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.