| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
protons |
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electrons |
|
electron shells |
|
atomic mass units |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.
Heredity is the passing on of physical or mental characteristics genetically from one __________ to another.
species |
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cell |
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generation |
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family |
Heredity is the passing on of physical or mental characteristics genetically from one generation to another. Heredity is made possible via large strings of chromosomes which carry information encoded in genes.
What part of the nervous system controls simple reflexes?
spinal cord |
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medulla |
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cerebrum |
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autonomic |
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.
Minerals, vitamins, and fiber are:
micronutrients |
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macronutrients |
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carbohydrates |
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proteins |
Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
proton |
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electron |
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neutron |
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atom |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.