| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.08 |
| Score | 0% | 62% |
Which of the following is not part of the carbon cycle?
decomposition |
|
photosynthesis |
|
respiration |
|
precipitation |
The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.
As part of digestion, the liver produces bile which breaks down:
sugars |
|
fat |
|
protein |
|
starches |
The liver produces bile which emulsifies (separates) fat.
Which of the following is not a method of heat transfer?
conduction |
|
convection |
|
radiation |
|
reflection |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
In the metric system, what prefix represents 103?
centi |
|
kilo |
|
mega |
|
milli |
Kilo is the metric system prefix for 103.
Antigens are found on the outside of which blood cells?
white |
|
red |
|
platelets |
|
plasma |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.