| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
Secondary consumers that also eat producers are known as:
herbivores |
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omnivores |
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scavengers |
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carnivores |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.
Acceleration is the rate of change of velocity per unit of time. Which of these is the formula for acceleration?
\(\vec{a} = { \Delta \vec{v} \over t }\) |
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\(\vec{a} = { \vec{v} \over t }\) |
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\(\vec{a} = \Delta \vec{v} t \) |
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\(\vec{a} = { t \over \Delta \vec{v} }\) |
Acceleration is the rate of change of velocity per unit of time. In physics, the delta symbol (\(\Delta\)) represents change so the formula for acceleration becomes \(\vec{a} = { \Delta \vec{v} \over t }\)
Which of the following states of matter exists at the lowest temperature?
gas |
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solid |
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none of these |
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liquid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
A subatomic particle found in the nucleus of an atom. It carries a positive electric charge. This desribes which of the following?
proton |
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electron |
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atom |
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neutron |
A proton is a subatomic particle found in the nucleus of an atom. It carries a positive electric charge.
What part of the nervous system controls simple reflexes?
cerebrum |
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spinal cord |
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autonomic |
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medulla |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.