| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.42 |
| Score | 0% | 68% |
Which is the proper order of Earth's atmospheric layers from the surface up to space?
stratosphere, troposphere, mesosphere, thermosphere |
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troposphere, stratosphere, mesosphere, thermosphere |
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thermosphere, mesosphere, stratosphere, troposphere |
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mesosphere, thermosphere, stratosphere, troposphere |
The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.
In a eukaryotic cell, which organelles deal with proteins?
all of these deal with proteins |
|
ribosomes |
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Golgi apparatus |
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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.
What prevents blood pumped out of the ventricles from flowing back into the heart?
platelets |
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capillaries |
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valves |
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atria |
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.
Which of these is not a type of fat?
polyunsaturated |
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saturated |
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cholesterol |
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monounsaturated |
Fats come in three types, saturated (meats, shellfish, eggs, milk), monounsaturated (olives, almonds, avocados), and polyunsaturated (vegetable oils).
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
inherent |
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potential |
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gravitational |
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kinetic |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.