| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Which of the following is metamorphic rock?
coal |
|
marble |
|
granite |
|
obsidian |
The Earth's rocks fall into three categories based on how they're formed. Igneous rock (granite, basalt, obsidian) is formed from the hardening of molten rock (lava), sedimentary rock (shale, sandstone, coal) is formed by the gradual despositing and cementing of rock and other debris, and metamorphic rock (marble, slate, quartzite) which is formed when existing rock is altered though pressure, temperature, or chemical processes.
The connective tissue that connects bones to other bones at joints is called:
knuckles |
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ligaments |
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tendons |
|
cartilage |
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).
In the food chain, omnivores may be which of the following?
primary or tertiary consumers |
|
secondary consumers or scavengers |
|
primary or secondary consumers |
|
secondary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
Which of blood component fights infection?
plasma |
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platelets |
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red blood cells |
|
white blood cells |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.
Which of the following is not a method of heat transfer?
radiation |
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reflection |
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conduction |
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convection |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.