| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
electron shells |
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atomic mass units |
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protons |
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electrons |
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.
Convert -20C° to F°.
78 |
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-36 |
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-4 |
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36 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(-20) + 32\)
\(F° = {-180 \over 5} + 32\)
\(F° = -36 + 32 = -4\)
In the foood chain, producers serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through:
chemosynthesis |
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photosynthesis |
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decomposition |
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autotrophs |
Producers (autotrophs) serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through chemosynthesis
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
small intestine |
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mouth |
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stomach |
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large intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
In a eukaryotic cell, which organelles deal with proteins?
Golgi apparatus |
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ribosomes |
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all of these deal with proteins |
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endoplasmic reticulum |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. Ribosomes produce proteins, endoplasmic reticulum helps synthesize proteins and fats, and Golgi apparatus prepares proteins for use.