| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.41 |
| Score | 0% | 68% |
Examples of primary consumers include:
rats |
|
fish |
|
cows |
|
all of these |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
kinetic |
|
potential |
|
gravitational |
|
inherent |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.
Changes to an object's speed or direction of motion are caused by which of the following?
kinetic energy |
|
a force |
|
power |
|
work |
Force is applied to change an object's speed or direction of motion.
The ozone layer is in which of Earth's atmospheric layers?
mesosphere |
|
stratosphere |
|
thermosphere |
|
troposphere |
The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.
This skeletal system is common in arthropods like insects, spiders, and crustaceans.
vertebrate |
|
bone |
|
exoskeleton |
|
endoskeleton |
An exoskeleton (external skeleton) is common in arthropods like insects, spiders, and crustaceans.