| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:
scavengers |
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primary consumers |
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decomposers |
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producers |
Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.
In the food chain, omnivores may be which of the following?
primary or secondary consumers |
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primary or tertiary consumers |
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secondary or tertiary consumers |
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secondary consumers or scavengers |
Secondary or tertiary consumers may be omnivores.
Which of the following is not a terrestrial planet?
Venus |
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Jupiter |
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Mercury |
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Earth |
The four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are called terrestrial (Earth-like) planets because, like the Earth, they're solid with inner metal cores covered by rocky surfaces.
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
potential |
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gravitational |
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inherent |
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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.
The transfer of heat by the circulation or movement of the heated parts of a liquid or gas is called:
diffusion |
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conduction |
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convection |
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radiation |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. Examples of heat transfer by convection include water coming to a boil on a stove, ice melting, and steam from a cup of coffee.