| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.51 |
| Score | 0% | 70% |
Which of these is not a type of fat?
polyunsaturated |
|
cholesterol |
|
saturated |
|
monounsaturated |
Fats come in three types, saturated (meats, shellfish, eggs, milk), monounsaturated (olives, almonds, avocados), and polyunsaturated (vegetable oils).
Examples of primary consumers include:
cows |
|
fish |
|
all of these |
|
rats |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
The __________ is a system of muscles that allows breathing.
trachea |
|
pulmonary |
|
bronchioles |
|
diaphragm |
The diaphragm is a system of muscles that allows breathing. During inhalation, the diaphragm expands and air rushes in to fill the space created. Then, during exhalation, the diaphragm contracts and forces the air back out.
Which of the following states of matter exists at the lowest temperature?
gas |
|
liquid |
|
none of these |
|
solid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
The pitch of the siren of an approaching ambulance changes as it approaches you. This is an example of which of the following?
refraction |
|
sound radiation |
|
Doppler effect |
|
reflection |
The Doppler effect occurs when the source or listener (or both) of sound waves is moving. If they're moving closer together, the listener perceives the sound with a higher pitch and, when they're moving apart, the listener perceives the sound with a lower pitch.