| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.67 |
| Score | 0% | 73% |
Convert -20C° to F°.
36 |
|
-4 |
|
-36 |
|
78 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(-20) + 32\)
\(F° = {-180 \over 5} + 32\)
\(F° = -36 + 32 = -4\)
Which of the following states of matter exists at the lowest temperature?
solid |
|
gas |
|
none of these |
|
liquid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
As part of digestion, the liver produces bile which breaks down:
sugars |
|
fat |
|
starches |
|
protein |
The liver produces bile which emulsifies (separates) fat.
The biosphere consists of which of the following?
all of these |
|
atmosphere |
|
hydrosphere |
|
lithosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
sentient |
|
spiny |
|
vertebrate |
|
arthropod |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.