| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.35 |
| Score | 0% | 67% |
Which of the following members of the food chain are most alike?
primary consumers and omnivores |
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scavengers and decomposers |
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herbivores and autotrophs |
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producers and tertiary consumers |
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.
Which of the following does not represent the freezing point of water?
32°F |
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0°C |
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0°F |
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273K |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.
In cell biology, where does DNA replication take place?
Golgi apparatus |
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mitochondria |
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nucleus |
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cytoplasm |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
The energy posessed by a thrown baseball is an example of what kind of energy?
transitional |
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gravitational |
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potential |
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kinetic |
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.
All surface water is part of the:
hydrosphere |
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lithosphere |
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geosphere |
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atmosphere |
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).