| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Most digestion takes place where?
small intestine |
|
mouth |
|
large intestine |
|
stomach |
The small intestine is where most digestion takes place. As food travels along the small intestine it gets broken down completely by enzymes secreted from the walls. These enzymes are produced in the small intestine as well as in the pancreas and liver. After the enzymes break down the food, the resulting substances are then absorbed into the blood via capillaries in the small intestine walls.
In the food chain, omnivores may be which of the following?
primary or tertiary consumers |
|
primary or secondary consumers |
|
secondary consumers or scavengers |
|
secondary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
large intestine |
|
stomach |
|
mouth |
|
small intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Herbivores are __________ that subsist on producers like plants and fungus.
scavengers |
|
tertiary consumers |
|
primary consumers |
|
secondary consumers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
Which of the following members of the food chain are most alike?
scavengers and decomposers |
|
producers and tertiary consumers |
|
primary consumers and omnivores |
|
herbivores and autotrophs |
Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.