| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.88 |
| Score | 0% | 78% |
Convert 0C° to F°.
-32 |
|
32 |
|
0 |
|
16 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(0) + 32\)
\(F° = 0 + 32 = 32\)
An air mass is a large body of air that has which of the following characteristics?
all of these |
|
similar temperature |
|
similar moisture |
|
similar density |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
Gametes have how many pairs of chromosomes?
4 |
|
23 |
|
46 |
|
2 |
Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.
Which of these is not a component of blood?
marrow |
|
plasma |
|
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.
Which of the following states of matter exists at the lowest temperature?
none of these |
|
liquid |
|
gas |
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solid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.