| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.93 |
| Score | 0% | 59% |
What part of the food chain serves only as food for other organisms?
decomposers |
|
primary consumers |
|
secondary consumers |
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producers |
Producers (autotrophs) serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through chemosynthesis
Examples of secondary consumers include:
wolves |
|
plankton |
|
chickens |
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grasshoppers |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.
Molecules and atoms that are outputs from a chemical reaction are known as which of the following?
results |
|
products |
|
reactants |
|
side effects |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
Which of the following is the narrowest classification of life?
species |
|
domain |
|
genus |
|
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 |
|
-8 |
|
\({40 \over 9}\) |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (-40 - 32)\)
\(C° = {5 \over 9} (-72) = {{-72 \times 5} \over 9}\)
\(C° = {-360 \over 9}\)
\(C° = -40\)