| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.53 |
| Score | 0% | 71% |
In the metric system, what prefix represents 10-3?
kilo |
|
centi |
|
milli |
|
mega |
In the metric system, milli is the prefix for 10-3.
Which of the following is not a method of heat transfer?
conduction |
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convection |
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reflection |
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radiation |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
Water has a refractive index of 1.33. Which of the following is true?
light travels 1.33 times slower in a vacuum than it does in water |
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light is 1.33 times brighter in a vacuum than it is in water |
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light travels 1.33 times faster in a vacuum than it does in water |
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light is 1.33 times dimmer in a vacuum than it is in water |
The speed of light varies based on the material that the waves are passing through. The refractive index of a material indicates how easily light travels through it compared to how easily light travels through a vacuum. For example, the refractive index of water is 1.33, meaning that light travels 1.33 times faster in a vacuum than it does in water.
Which of the following is a decomposer?
pine tree |
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mosquito |
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fungi |
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ferret |
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.
The connective tissue that connects bones to other bones at joints is called:
ligaments |
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tendons |
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cartilage |
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knuckles |
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).