| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.95 |
| Score | 0% | 59% |
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
stomach |
|
large intestine |
|
small intestine |
|
mouth |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Neurons are part of the __________ nervous system.
peripheral |
|
central |
|
autonomic |
|
somatic |
The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.
What part of the brain is responsible for the major senses (thinking, hearing, seeing)?
medulla |
|
brainstem |
|
cerebellum |
|
cerebrum |
The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).
In the classification of life, bacteria, archaea and eukaryota are which of the following?
species |
|
kingdoms |
|
domains |
|
classes |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
The two heart chambers that collect blood are called:
atria |
|
ventricles |
|
aorta |
|
valves |
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.