| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.15 |
| Score | 0% | 63% |
When compared to eukaryotic cells, prokaryotic cells are:
more complex |
|
less complex |
|
none of these |
|
similarly complex |
Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.
Earth's breathable air is held in which atmospheric layer?
stratosphere |
|
troposphere |
|
thermosphere |
|
mesosphere |
The Earth's atmosphere has several layers starting with the troposphere which is closest in proximity to the surface. Containing most of the Earth's breathable air (oxygen and nitrogen), it's a region with warmer temperatures closer to the surface and cooler temperatures farther away which results in the rising and falling air that generates weather.
The rows of the Periodic Table of the Elements are called:
periods |
|
groups |
|
families |
|
shells |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.
In the classification of life, bacteria, archaea and eukaryota are which of the following?
species |
|
domains |
|
kingdoms |
|
classes |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
As part of digestion, the liver produces bile which breaks down:
protein |
|
fat |
|
starches |
|
sugars |
The liver produces bile which emulsifies (separates) fat.