| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.44 |
| Score | 0% | 69% |
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
animals |
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plants |
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habitats |
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minerals |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Vector quantities are fully described by which of the following?
a magnitude and a direction |
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a direction only |
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a direction and a polarity |
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a magnitude only |
Velocity and displacement are vector quantities which means each is fully described by both a magnitude and a direction. In contrast, scalar quantities are quantities that are fully described by a magnitude only. A variable indicating a vector quantity will often be shown with an arrow symbol: \(\vec{v}\)
The four planets closest to the Sun are called terrestrial. What does terrestrial mean?
the planets have magnetic fields |
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the planets have moons |
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the planets have water |
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the planets are Earth-like |
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.
Which of these layers is found directly below the Earth's crust?
mantle |
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inner core |
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outer core |
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continents |
The crust is the Earth's outermost layer and is divided into oceanic and continental types. Oceanic crust is 3 miles (5 km) to 6 miles (10 km) thick and is composed primarily of denser rock. Continental crust is 20 to 30 miles (30 to 50 km) thick and composed primarily of less dense rock. The crust makes up approximately one percent of the Earth's total volume.
In the heart, blood flows from the __________ ventricle to the lungs then back to the heart via the __________ atrium.
left, left |
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left, right |
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right, right |
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right, left |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.