| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
potential |
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gravitational |
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inherent |
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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.
In the heart, blood flows from the __________ ventricle to the lungs then back to the heart via the __________ atrium.
right, right |
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left, left |
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right, left |
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left, right |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.
The two heart chambers that collect blood are called:
valves |
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ventricles |
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aorta |
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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.
In the food chain, omnivores may be which of the following?
secondary or tertiary consumers |
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primary or tertiary consumers |
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secondary consumers or scavengers |
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primary or secondary consumers |
Secondary or tertiary consumers may be omnivores.
Which of the following states of matter exists at the lowest temperature?
liquid |
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solid |
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gas |
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none of these |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.