| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
Bronchioles, alveolus, and capillaries are vital parts of which bodily system?
circulation |
|
digestion |
|
nervous |
|
respiration |
The trachea branches into the left and right bronchi which each lead to a lung where the bronchi subdivide into smaller tubes called bronchioles. Each bronchiole ends in a small sac called an alveolus which allows oxygen from the air to enter the bloodstream via tiny blood vessels called capillaries.
Plant cells are surrounded by:
neither a cell membrane nor a cell wall |
|
only a cell wall |
|
only a cell membrane |
|
a cell membrane and a cell wall |
Animal cells are surrounded by a semipermeable membrane which allows for the transfer of water and oxygen to and from the cell. In plant cells, the cell membrane is surrounded by a somewhat rigid cell wall which provides the cell structure and support.
During digestion, after proteins are broken down where does the undigested food go next?
large intestine |
|
esophagus |
|
stomach |
|
small intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
50°F is how many °C?
10 |
|
122 |
|
-10 |
|
58 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (50 - 32)\)
\(C° = {5 \over 9} (18)\)
\(C° = {90 \over 9}\)
\(C° = 10\)
A large naturally occurring community of flora and fauna occupying a major habitat is:
a biome |
|
a community |
|
a population |
|
a food chain |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).