| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.29 |
| Score | 0% | 66% |
In cell biology, cytokinesis results in two separate:
cells |
|
chromosomes |
|
nuclei |
|
chromatids |
During cell division, the cytokinesis phase occurs when cytoplasm and cell membranes complete their separation resulting in two separate cells.
The coldest point in the Earth's atmosphere is reached in which atmospheric layer?
troposphere |
|
stratosphere |
|
mesosphere |
|
thermosphere |
In the mesosphere, temperature again drops as altitude increases until the coldest point in the Earth's atmosphere, the mesopause, is reached where temperatures fall to −225 °F (−143 °C).
Which of these is not a component of blood?
marrow |
|
white blood cells |
|
plasma |
|
red 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 is not a method of heat transfer?
conduction |
|
reflection |
|
convection |
|
radiation |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
Convert 0C° to F°.
0 |
|
32 |
|
-32 |
|
16 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(0) + 32\)
\(F° = 0 + 32 = 32\)