| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.03 |
| Score | 0% | 61% |
__________ and __________ pair to strengthen bones.
vitamin D, magnesium |
|
iron, calcium |
|
vitamin D, calcium |
|
calcium, vitamin A |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
The Rh factor antigen in blood determines:
universal donor status |
|
universal recipient status |
|
blood type |
|
postive or negative |
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.
Which is the proper order of Earth's atmospheric layers from the surface up to space?
stratosphere, troposphere, mesosphere, thermosphere |
|
troposphere, stratosphere, mesosphere, thermosphere |
|
thermosphere, mesosphere, stratosphere, troposphere |
|
mesosphere, thermosphere, stratosphere, troposphere |
The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.
Tertiary consumers eat which of the following?
all of these |
|
primary and secondary consumers |
|
decomposers |
|
producers |
Tertiary consumers eat primary consumers and secondary consumers and are typically carnivorous predators. Tertiary consumers may also be omnivores. Examples include wolves, sharks, and human beings.
The heart __________ blood.
oxygenates |
|
creates |
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deoxygenates |
|
filters |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.