| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
The gravitational interaction of Earth and the Moon is responsible for which of these?
day and night cycle |
|
the northern lights |
|
tides |
|
seasons |
Tides are caused by the gravitational interaction of Earth and the Moon.
Bronchioles, alveolus, and capillaries are vital parts of which bodily system?
digestion |
|
respiration |
|
circulation |
|
nervous |
The trachea branches into the left and right bronchi which each lead to a lung where the bronchi subdivide into smaller tubes called bronchioles. Each bronchiole ends in a small sac called an alveolus which allows oxygen from the air to enter the bloodstream via tiny blood vessels called capillaries.
In the food chain, omnivores may be which of the following?
secondary consumers or scavengers |
|
primary or secondary consumers |
|
secondary or tertiary consumers |
|
primary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
An asteroid belt holds many of the asteroids in our solar system. It is located between the orbits of which planets?
Jupiter and Saturn |
|
Mercury and Venus |
|
Mars and Earth |
|
Mars and Jupiter |
The solar system also contains over a million rocky fragments of at least 1km in diameter called asteroids as well as millions more with smaller diameters. Many of these asteroids are an asteroid belt between the orbits of Mars and Jupiter.
The Rh factor antigen in blood determines:
postive or negative |
|
universal recipient status |
|
blood type |
|
universal donor status |
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.