| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.27 |
| Score | 0% | 65% |
A large naturally occurring community of flora and fauna occupying a major habitat is:
a food chain |
|
a biome |
|
a population |
|
a community |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Which of the following does not represent the freezing point of water?
0°F |
|
0°C |
|
273K |
|
32°F |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.
In taxonomy, domains are the broadest classification of life. How many domains are there?
5 |
|
3 |
|
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.
In which type of compound are electrons shared between atoms?
ionic |
|
chemical |
|
molecular |
|
covalent |
A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.
An element in the physical state of __________ maintains a constant volume and shape.
solid |
|
gel |
|
liquid |
|
gas |
An element in a solid state has atoms or molecules that are constricted and do not move freely. Solids maintain a constant volume and shape and exist at a lower temperature than liquids or gases.