| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.62 |
| Score | 0% | 72% |
The respiratory and circulatory systems are similar in that they:
transport nutrients |
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transport oxygen |
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deoxygenate blood |
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add carbon dioxide |
Like the respiratory system, the circulatory system serves to transport oxygen throughout the body while removing carbon dioxide. In addition, the circulatory system transports nutrients from the digestive system.
Atoms of an element whose atoms can vary in the number of neutrons in their nucleus are called which of the following?
isotopes |
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products |
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reactants |
|
ions |
The atomic mass of an element listed in the Periodic Table represents the average mass of a single atom of that element and is measured in atomic mass units (amu). This number is an average as some elements have isotopes with atoms that vary in their number of neturons and, therefore, differ in weight.
Which of these is not a type of fat?
polyunsaturated |
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monounsaturated |
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cholesterol |
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saturated |
Fats come in three types, saturated (meats, shellfish, eggs, milk), monounsaturated (olives, almonds, avocados), and polyunsaturated (vegetable oils).
Which of the following is not a method of heat transfer?
conduction |
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radiation |
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convection |
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reflection |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
Blood is created in:
the liver |
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red blood cells |
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the heart |
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bone marrow |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.