| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.23 |
| Score | 0% | 65% |
Examples of primary consumers include:
rats |
|
cows |
|
fish |
|
all of these |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
When two air masses meet and neither is displaced, what kind of front is present?
warm |
|
cold |
|
occluded |
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stationary |
When two air masses meet and neither is displaced, a stationary front is created. Stationary fronts often cause persistent cloudy wet weather.
What part of the brain is responsible for for balance, movement, and muscle coordination?
medulla |
|
cerebrum |
|
brainstem |
|
cerebellum |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.
What part of the nervous system controls simple reflexes?
autonomic |
|
cerebrum |
|
medulla |
|
spinal cord |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.
50°F is how many °C?
10 |
|
-10 |
|
122 |
|
58 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (50 - 32)\)
\(C° = {5 \over 9} (18)\)
\(C° = {90 \over 9}\)
\(C° = 10\)