| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.68 |
| Score | 0% | 74% |
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
decrease, raise |
|
decrease, stabilize |
|
stabilize, raise |
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raise, decrease |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
Convert 0C° to F°.
32 |
|
0 |
|
-32 |
|
16 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(0) + 32\)
\(F° = 0 + 32 = 32\)
pH is a scale that measures of how basic or acidic a solution is. A solution with a pH of 9 is:
acidic |
|
neutral |
|
water |
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alkaline |
An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.
In the food chain, consumers are classified as which of the following?
tertiary |
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secondary |
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primary |
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all of these |
Most animals consume other organisms to survive. Consumers (heterotrophs) are divided into three types, primary, secondary, and tertiary, based on their place in the food chain.
A dominant trait will be expressed when paired with:
a recessive trait |
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a dominant trait |
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a chromosome |
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a gene |
The traits represented by genes are inherited independently of each other (one from the male and one from the female gamete) and a trait can be dominant or recessive. A dominant trait will be expressed when paired with a recessive trait while two copies of a recessive trait (one from each parent) must be present for the recessive trait to be expressed.