| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.27 |
| Score | 0% | 65% |
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
minerals |
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animals |
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plants |
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habitats |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Which of the following members of the food chain are most alike?
scavengers and decomposers |
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primary consumers and omnivores |
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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.
Menstruation occurs when:
the fetus is formed |
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the ovum fails to become fertilized |
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the zygote is formed |
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the ovum becomes fertilized |
If the ovum fails to become fertilized, the lining of the uterus sloughs off during menstruation. From puberty to menopause, this cycle of menstruation repeats monthly (except during pregnancy).
Which of the following is not a characteristic of the Sun?
formed 2.6 billion years ago |
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is a yellow dwarf star |
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is composed of hydrogen and helium |
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makes up over 99% of the mass of the solar system |
The Sun is a G-type main-sequence star (G2V) but is informally known as a yellow dwarf star. Composed of 73% hydrogen and 25% helium, the hot plasma that makes up the Sun reaches 9,900°F (5,505°C) at the surface. It formed approximately 4.6 billion years ago and makes up 99.86% of the mass in the solar system.
A transition zone between two air masses is called:
fog |
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thunderstorm |
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boundary |
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front |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.