| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.24 |
| Score | 0% | 65% |
In the metric system, what prefix represents 103?
centi |
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milli |
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kilo |
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mega |
Kilo is the metric system prefix for 103.
Velocity is the rate at which an object changes position. What is the formula for velocity?
\(\vec{v} = { \vec{d} \over t } \) |
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\(\vec{v} = { t \over \vec{d} } \) |
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none of these |
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\(\vec{v} = \vec{d}t \) |
Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)
Secondary consumers that also eat producers are known as:
carnivores |
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herbivores |
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omnivores |
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scavengers |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.
During digestion, after proteins are broken down where does the undigested food go next?
small intestine |
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large intestine |
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stomach |
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esophagus |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
The brain and spinal cord make up the __________ nervous system.
somatic |
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autonomic |
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peripheral |
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central |
The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.