| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.75 |
| Score | 0% | 75% |
When two air masses meet and neither is displaced, what kind of front is present?
stationary |
|
cold |
|
warm |
|
occluded |
When two air masses meet and neither is displaced, a stationary front is created. Stationary fronts often cause persistent cloudy wet weather.
Changes to an object's speed or direction of motion are caused by which of the following?
kinetic energy |
|
work |
|
a force |
|
power |
Force is applied to change an object's speed or direction of motion.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
stomach |
|
small intestine |
|
mouth |
|
large intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Which of these is not a phase in cell division?
interphase |
|
megaphase |
|
cytokinesis |
|
anaphase |
Cell division is the process by which cells replicate genetic material in the nucleus and consists of several phases, beginning with interphase and ending with cytokinesis.
Which of these is not a recognized blood type?
AO |
|
AB |
|
B |
|
O |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.