| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.22 |
| Score | 0% | 64% |
Which of the following states of matter exists at the highest temperature?
solid |
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none of these |
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gas |
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liquid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
Which of the following indicates the correct reproductive sequence?
ovum → zygote → fetus |
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none of these are correct |
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zygote → ovum → fetus |
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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.
Which of the following members of the food chain are most alike?
primary consumers and omnivores |
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scavengers and decomposers |
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herbivores and autotrophs |
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producers and tertiary consumers |
Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.
Examples of primary consumers include:
fish |
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rats |
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all of these |
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cows |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
What part of the food chain serves only as food for other organisms?
producers |
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primary consumers |
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decomposers |
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secondary consumers |
Producers (autotrophs) serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through chemosynthesis