| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.09 |
| Score | 0% | 62% |
During digestion, after proteins are broken down where does the undigested food go next?
small intestine |
|
large intestine |
|
esophagus |
|
stomach |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Plant cells may generate energy through which of the following?
all of these |
|
anaerobic respiration |
|
aerobic respiration |
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photosynthesis |
Some plant cells produce their own energy through photosynthesis which is the process by which sunlight, carbon dioxide, and water react to make sugar and oxygen. Animal cells cannot produce their own energy and, instead, generate energy when mitochondria consume outside sugar and oxygen through aerobic respiration.
A large naturally occurring community of flora and fauna occupying a major habitat is:
a population |
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a biome |
|
a community |
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a food chain |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
The coldest point in the Earth's atmosphere is reached in which atmospheric layer?
troposphere |
|
thermosphere |
|
mesosphere |
|
stratosphere |
In the mesosphere, temperature again drops as altitude increases until the coldest point in the Earth's atmosphere, the mesopause, is reached where temperatures fall to −225 °F (−143 °C).
Antigens are found on the outside of which blood cells?
platelets |
|
white |
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plasma |
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red |
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.