| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.39 |
| Score | 0% | 68% |
During the water cycle, water enters the atmosphere as a gas through which process?
precipitation |
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both evaporation and transpiration |
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transpiration |
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evaporation |
The water (hydrologic) cycle describes the movement of water from Earth through the atmosphere and back to Earth. The cycle starts when water evaporates into a gas from bodies of water like rivers, lakes and oceans or transpirates from the leaves of plants.
Carbohydrates are found in:
vegetable oils |
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food additives |
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animal sources |
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sugars and starches |
Carbohydrates are major sources of energy for the body and are found in sugars (fruit, cane sugar, beets) and starches (bread, rice, potatoes, pasta).
In the Periodic Table of the Elements, atomic number is equal to which of the following?
number of protons + neutrons in the nucleus |
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number of protons in the nucleus |
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number of neutrons in the nucleus |
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number of electrons orbiting the nucleus |
The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.
The heat from the Sun traveling to Earth is an example of which of the following?
electricity |
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convection |
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conduction |
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radiation |
Radiation occurs when electromagnetic waves transmit heat. An example is the heat from the Sun as it travels to Earth.
Someone who has Rh-factor __________ blood cannot receive blood with a __________ type.
negative, positive |
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positive, negative |
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antigen, negative |
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positive, antigen |
Blood transfer is limited by the type and Rh factor of the blood. Someone who has Rh-factor negative blood cannot receive blood with a positive type but a person with Rh-factor positive type blood can receive Rh-negative blood. Type O negative blood is the universal donor because it can be given to a person with any blood type. Type AB positive is the universal recipient meaning someone with this blood type can receive any other type of blood.