| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.22 |
| Score | 0% | 64% |
Which of these does not contain oxygenated blood?
aorta |
|
pulmonary vein |
|
right atrium |
|
left ventricle |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.
Large, puffy, mid-altitude clouds with a flat base and a rounded top describe which of the following?
cirrus clouds |
|
fog |
|
stratus clouds |
|
cumulus clouds |
Cumulus clouds are large, puffy, mid-altitude clouds with a flat base and a rounded top. These clouds grow upward and can develop into a cumulonimbus or thunderstorm cloud.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
stomach |
|
large intestine |
|
small intestine |
|
mouth |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
An element in the physical state of __________ maintains neither a constant volume nor a constant shape.
gas |
|
solid |
|
plasma |
|
liquid |
The gaseous state occurs at a higher temperature range than the solid and liquid states of the same substance. In this state, molecules flow very freely around each other and will spread out as far as they're able. Gases maintain neither a constant volume nor a constant shape.
Which of the following does not represent the freezing point of water?
0°F |
|
0°C |
|
273K |
|
32°F |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.