| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
Which of the following is not a method of heat transfer?
conduction |
|
reflection |
|
convection |
|
radiation |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
__________ and __________ pair to strengthen bones.
iron, calcium |
|
vitamin D, calcium |
|
calcium, vitamin A |
|
vitamin D, magnesium |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
As part of digestion, the liver produces bile which breaks down:
protein |
|
sugars |
|
fat |
|
starches |
The liver produces bile which emulsifies (separates) fat.
Blood is circulated throughout the body via:
veins |
|
aorta |
|
capillaries |
|
arterioles |
The aorta is the body's largest artery and receives blood from the pulmonary vein via the left ventricle. From there, blood is circulated through the rest of the body through smaller arteries called arterioles that branch out from the heart. Finally, blood is delivered to bodily tissues through capillaries.
212°F is how many °C?
0 |
|
\(135 {5 \over 9}\) |
|
-100 |
|
100 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)