| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
The gravitational interaction of Earth and the Moon is responsible for which of these?
the northern lights |
|
seasons |
|
tides |
|
day and night cycle |
Tides are caused by the gravitational interaction of Earth and the Moon.
Which of the following indicates the correct reproductive sequence?
ovum → zygote → fetus |
|
none of these are correct |
|
zygote → ovum → fetus |
|
ovum → fetus → zygote |
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.
As part of the carbon cycle, plants release carbon into the atmosphere through which process?
photosynthesis |
|
decomposition |
|
sedimentation |
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evaporation |
The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
stabilize, raise |
|
decrease, stabilize |
|
decrease, raise |
|
raise, decrease |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
The __________ nervous system regulates involuntary activity in the heart, stomach, and intestines.
autonomic |
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peripheral |
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somatic |
|
central |
Part of the peripheral nervous system, the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.