| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
Small rocks shed by asteroids and comets that reach the earth are called:
meteoroids |
|
shooting stars |
|
meteors |
|
meteorites |
Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.
In the metric system, what prefix represents 10-3?
centi |
|
milli |
|
mega |
|
kilo |
In the metric system, milli is the prefix for 10-3.
A subatomic particle found in the nucleus of an atom. It carries a positive electric charge. This desribes which of the following?
proton |
|
atom |
|
neutron |
|
electron |
A proton is a subatomic particle found in the nucleus of an atom. It carries a positive electric charge.
In taxonomy, domains are the broadest classification of life. How many domains are there?
3 |
|
5 |
|
dozens |
|
6 |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
Examples of primary consumers include:
all of these |
|
cows |
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fish |
|
rats |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.