| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
During digestion, after proteins are broken down where does the undigested food go next?
small intestine |
|
esophagus |
|
stomach |
|
large intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Changes to an object's speed or direction of motion are caused by which of the following?
a force |
|
work |
|
power |
|
kinetic energy |
Force is applied to change an object's speed or direction of motion.
The envelope of gases surrounding the planet is called the:
hydrosphere |
|
geosphere |
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atmosphere |
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lithosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).
Which of blood component allows blood to clot?
plasma |
|
red blood cells |
|
white blood cells |
|
platelets |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.
Which of these parts of digestion takes place in the mouth?
breaking down fats |
|
breaking down proteins |
|
absorbing nutrients |
|
breaking down starches |
Digestion begins in the mouth where the teeth and tongue break down food mechanically through chewing and saliva, via the enzyme salivary amylase, starts to break starches down chemically. From the mouth, food travels down the esophagus where contractions push the food into the stomach.