| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
A __________ is the smallest multi-atom particle of an element or compound that can exist and still retain the characteristics of the element or compound.
molecule |
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neutron |
|
ion |
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isotope |
A molecule is the smallest multi-atom particle of an element or compound that can exist and still retain the characteristics of the element or compound. The molecules of elements consist of two or more similar atoms, the molecules of compounds consist of two or more different atoms.
A biological community of interacting organisms and their physical environment is known as:
biome |
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population |
|
ecosystem |
|
community |
An ecosystem is a biological community of interacting organisms and their physical environment. This includes both the biotic (living) and abiotic (non-living).
Which of the following is the narrowest classification of life?
domain |
|
genus |
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species |
|
family |
The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.
-40°F is how many °C?
\(-{40 \over 9}\) |
|
-40 |
|
\({40 \over 9}\) |
|
-8 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (-40 - 32)\)
\(C° = {5 \over 9} (-72) = {{-72 \times 5} \over 9}\)
\(C° = {-360 \over 9}\)
\(C° = -40\)
During digestion, after proteins are broken down where does the undigested food go next?
stomach |
|
large intestine |
|
small intestine |
|
esophagus |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.