| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.08 |
| Score | 0% | 62% |
In cell biology, where does DNA replication take place?
Golgi apparatus |
|
cytoplasm |
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nucleus |
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mitochondria |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
"For every action, there is an equal and opposite reaction." This describes which of Newton's laws of motion?
first |
|
third |
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second |
|
fourth |
Newton's third law of motion states that For every action, there is an equal and opposite reaction. When an object exerts a force on another object, the second object exerts a force of equal magnitude in the opposite direction on the first object.
In the food chain, omnivores may be which of the following?
secondary consumers or scavengers |
|
primary or secondary consumers |
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secondary or tertiary consumers |
|
primary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
The Earth's rocks fall into three categories based on how they're formed. Which of the following is formed by the gradual depositing of small rocks?
sedimentary |
|
metamorphic |
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igneous |
|
granite |
The Earth's rocks fall into three categories based on how they're formed. Igneous rock (granite, basalt, obsidian) is formed from the hardening of molten rock (lava), sedimentary rock (shale, sandstone, coal) is formed by the gradual despositing and cementing of rock and other debris, and metamorphic rock (marble, slate, quartzite) which is formed when existing rock is altered though pressure, temperature, or chemical processes.
The Rh factor antigen in blood determines:
blood type |
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universal donor status |
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universal recipient status |
|
postive or negative |
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.