| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.50 |
| Score | 0% | 70% |
Which of the following is the narrowest classification of life?
family |
|
species |
|
domain |
|
genus |
The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.
212°F is how many °C?
\(135 {5 \over 9}\) |
|
100 |
|
-100 |
|
0 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)
As a cold front moves into an area, the heavier cool air __________ the lighter warm air that it is replacing.
mixes with |
|
cancels out |
|
pushes under |
|
pushes above |
A cold front is a warm-cold air boundary with the colder air replacing the warmer. As a cold front moves into an area, the heavier cool air pushes under the lighter warm air that it is replacing. The warm air becomes cooler as it rises and, if the rising air is humid enough, the water vapor it contains will condense into clouds and precipitation may fall.
Most digestion takes place where?
small intestine |
|
large intestine |
|
stomach |
|
mouth |
The small intestine is where most digestion takes place. As food travels along the small intestine it gets broken down completely by enzymes secreted from the walls. These enzymes are produced in the small intestine as well as in the pancreas and liver. After the enzymes break down the food, the resulting substances are then absorbed into the blood via capillaries in the small intestine walls.
Herbivores are __________ that subsist on producers like plants and fungus.
secondary consumers |
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scavengers |
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primary consumers |
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tertiary consumers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.