| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.04 |
| Score | 0% | 61% |
During the water cycle, water enters the atmosphere as a gas through which process?
both evaporation and transpiration |
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transpiration |
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evaporation |
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precipitation |
The water (hydrologic) cycle describes the movement of water from Earth through the atmosphere and back to Earth. The cycle starts when water evaporates into a gas from bodies of water like rivers, lakes and oceans or transpirates from the leaves of plants.
Which of these vitamins doesn't come from food?
Potassium |
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D |
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C |
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A |
Vitamins are necessary for a wide variety of bodily processes. Some vitamins like Vitamins A and C come from diet but others, like Vitamin D, are generated in response to sunlight.
Velocity is the rate at which an object changes position. What is the formula for velocity?
none of these |
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\(\vec{v} = \vec{d}t \) |
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\(\vec{v} = { t \over \vec{d} } \) |
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\(\vec{v} = { \vec{d} \over t } \) |
Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)
Which of the following indicates the correct reproductive sequence?
ovum → fetus → zygote |
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zygote → ovum → fetus |
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ovum → zygote → fetus |
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none of these are correct |
During intercourse, the penis ejaculates sperm, produced in the testes, into the vagina. Some of the sperm makes their way to the uterus where, if they encounter an egg to fertilize, unite with the ovum to form a fertilized egg or zygote. The zygote then may implant in the uterus and eventually develop into a fetus.
__________ is caused by a lack of Vitamin C.
scurvy |
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anemia |
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diabetes |
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shingles |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.