| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
Bronchioles, alveolus, and capillaries are vital parts of which bodily system?
nervous |
|
digestion |
|
circulation |
|
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.
Convert 5C° to F°.
-23 |
|
41 |
|
37 |
|
27 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(5) + 32\)
\(F° = {45 \over 5} + 32\)
\(F° = 9 + 32 = 41\)
Molecules and atoms that are outputs from a chemical reaction are known as which of the following?
side effects |
|
results |
|
reactants |
|
products |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
The formula \(\vec{F_{g}} = { Gm_{1}m_{2} \over r^2}\) applies to which of Newton's laws?
third law of motion |
|
second law of motion |
|
first law of motion |
|
universal gravitation |
Newton's law of universal gravitation defines gravity: All objects in the universe attract each other with an equal force that varies directly as a product of their masses, and inversely as a square of their distance from each other. Expressed as a formula: \(\vec{F_{g}} = { Gm_{1}m_{2} \over r^2}\) where r is the distance between the two objects and G is the gravitational constant with a value of 6.67 x 10-11.
In cell biology, where does DNA replication take place?
Golgi apparatus |
|
cytoplasm |
|
mitochondria |
|
nucleus |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.