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* 1. After food is eaten, molecules in the digestive system break proteins down into amino acids, fats into fatty acids, and carbohydrates into simple sugars. These molecules are called

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* 2. Fahrenheit is a thermodynamic temperature scale, where the freezing point of water is 32 degrees Fahrenheit (°F) and the boiling point 212°F (at standard atmospheric pressure). Celsius, also called centigrade temperature scale, is a scale based on 0° for the freezing point of water and 100° for the boiling point of water. In order to convert Fahrenheit to Celsius, the following formula can be used:

Celsius=(Fahrenheit - 32) x 5/9

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* 3. Every cell in your body uses DNA as

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* 4. Humans have 23 pairs of chromosomes, for a total of

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* 5. Many individuals concerned with their carbon footprint are excited about the availability of hybrid electric vehicles. These cars are much more efficient in their use of fossil fuels than similarly sized internal combustion automobiles. However, hybrid electric vehicles do come with an environmental price tag. Their construction uses scarce metals, such as neodymium, lithium and lanthanum. Additionally, mining these elements involves pumping acids into deep boreholes to dissolve the surrounding rock and then removing the acid and mineral slurry. Such extraction processes are a type of surface mining, which have severe environmental impacts such as erosion, acid mine drainage, water pollution, and disruption of habitat.

Based on the passage above, what are the environmental trade-offs of hybrid electric vehicles?

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* 6. How many calories does someone need to eliminate from their diet in order to lose weight? First they should calculate their basal metabolic rate (BMR) which identifies how many calories they burn each day when at complete rest. After calculating their BMR, they can then use an additional formula to factor in their level of activity. There are separate BMR formulas for men and women, and these formulas require three variables: age, height, and current weight. Here is BMR formula for women:

BMR = 655 + (4.35 × W) × (4.7 x H) − (4.7 × A)

W = Weight in pounds
H = Height in inches
A = Age

According to the formula, which of the following will result in a lower BMR?

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* 7. Mechanical advantage is a measure of the force amplification that is achieved by using a tool, mechanical device, or machine system. The formula for mechanical advantage is:

A crowbar can be used to remove a nail from a board. If the crowbar has a mechanical advantage of 8, and the a force of 40 Newtons is applied to it, what will be the output force?

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* 8. Many individuals concerned with their carbon footprint are excited about the availability of hybrid electric vehicles. These cars are much more efficient in their use of fossil fuels than similarly sized internal combustion automobiles. However, hybrid electric vehicles do come with an environmental price tag. Their construction uses scarce metals, such as neodymium, lithium and lanthanum. Additionally, mining these elements involves pumping acids into deep boreholes to dissolve the surrounding rock and then removing the acid and mineral slurry. Such extraction processes are a type of surface mining, which have severe environmental impacts such as erosion, acid mine drainage, water pollution, and disruption of habitat.

Which sentence from the passage above best supports the idea that driving a hybrid electric vehicle burns gasoline?

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* 9. In a lab experiment designed to test the rate at which plants grow under artificial light, the kind of light used is which type of variable?

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* 10. How are chromosomes inherited?

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