| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
The gravitational interaction of Earth and the Moon is responsible for which of these?
day and night cycle |
|
seasons |
|
tides |
|
the northern lights |
Tides are caused by the gravitational interaction of Earth and the Moon.
What part of the nervous system is responsible for controlling involuntary actions like breathing, swallowing, and heartbeat?
cerebrum |
|
medulla |
|
cerebellum |
|
spinal cord |
Part of the brainstem, the medulla is the connection between the brain and the spinal cord. It controls involuntary actions like breathing, swallowing, and heartbeat.
Poor balance could indicate an issue with which part of the nervous system?
cerebellum |
|
medulla |
|
cerebrum |
|
spinal cord |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.
In the heart, blood flows from the __________ ventricle to the lungs then back to the heart via the __________ atrium.
right, right |
|
right, left |
|
left, left |
|
left, right |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.
Which is the proper order of Earth's atmospheric layers from the surface up to space?
troposphere, stratosphere, mesosphere, thermosphere |
|
thermosphere, mesosphere, stratosphere, troposphere |
|
mesosphere, thermosphere, stratosphere, troposphere |
|
stratosphere, troposphere, mesosphere, thermosphere |
The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.