| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.39 |
| Score | 0% | 68% |
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
sentient |
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arthropod |
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vertebrate |
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spiny |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
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 is not a terrestrial planet?
Mercury |
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Venus |
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Earth |
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Jupiter |
The four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are called terrestrial (Earth-like) planets because, like the Earth, they're solid with inner metal cores covered by rocky surfaces.
Menstruation occurs when:
the fetus is formed |
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the zygote is formed |
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the ovum becomes fertilized |
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the ovum fails to become 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 would be found on a reflecting telescope?
concave mirror |
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convex lens |
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concave lens |
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convex mirror |
A concave (or converging) mirror bulges inward and focuses reflected light on the mirror's focal point where the mirror's angles of incidence converge. In contrast, a convex (or diverging) mirror bulges outward and diffuses the light waves that strike it. A common use of a concave mirror is in a reflecting telescope, a common use of a convex mirror is in the side view mirror of a car.