| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.58 |
| Score | 0% | 72% |
__________ and __________ pair to strengthen bones.
calcium, vitamin A |
|
vitamin D, calcium |
|
vitamin D, magnesium |
|
iron, calcium |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
Convert 0C° to F°.
16 |
|
-32 |
|
0 |
|
32 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(0) + 32\)
\(F° = 0 + 32 = 32\)
Molecules and atoms that are inputs to a chemical reaction are known as which of the following?
components |
|
reactants |
|
products |
|
fuel |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
The envelope of gases surrounding the planet is called the:
atmosphere |
|
hydrosphere |
|
lithosphere |
|
geosphere |
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).
Which of these is not a component of blood?
plasma |
|
marrow |
|
red blood cells |
|
white blood cells |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.