| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.19 |
| Score | 0% | 64% |
The ovum and oviduct are part of which bodily system?
reproductive |
|
circulatory |
|
digestive |
|
nervous |
Approximately every 28 days during female ovulation an egg (ovum) is released from one of the ovaries and travels through the oviduct (fallopian tube) and into the uterus. At the same time, the endometrial lining of the uterus becomes prepared for implantation.
Water has a refractive index of 1.33. Which of the following is true?
light is 1.33 times dimmer in a vacuum than it is in water |
|
light travels 1.33 times slower in a vacuum than it does in water |
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light is 1.33 times brighter in a vacuum than it is in water |
|
light travels 1.33 times faster in a vacuum than it does in water |
The speed of light varies based on the material that the waves are passing through. The refractive index of a material indicates how easily light travels through it compared to how easily light travels through a vacuum. For example, the refractive index of water is 1.33, meaning that light travels 1.33 times faster in a vacuum than it does in water.
What part of the nervous system controls simple reflexes?
cerebrum |
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medulla |
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autonomic |
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spinal cord |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.
Examples of primary consumers include:
cows |
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rats |
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fish |
|
all of these |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
Tertiary consumers eat which of the following?
all of these |
|
producers |
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primary and secondary consumers |
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decomposers |
Tertiary consumers eat primary consumers and secondary consumers and are typically carnivorous predators. Tertiary consumers may also be omnivores. Examples include wolves, sharks, and human beings.