| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.29 |
| Score | 0% | 66% |
__________ is caused by a lack of iron in the diet.
shingles |
|
scurvy |
|
anemia |
|
diabetes |
Anemia, which may cause weakness, dizziness, and headaches is caused by a lack of iron in the diet.
Which of the following describes the Earth's outer core?
primarily solid |
|
makes up most of the Earth's volume |
|
solid |
|
liquid |
The Earth's core is divided into the liquid outer core (1,430 miles or 2,300 km radius) and the solid inner core (745 miles or 1,200 km radius).
Which of the following states of matter exists at the highest temperature?
liquid |
|
none of these |
|
solid |
|
gas |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
The process of diffusion allows __________ to exchange oxygen, carbon dioxide, nutrients, and waste between blood and the body's cells.
capillaries |
|
red blood cells |
|
arteries |
|
veins |
Capillaries are small thin-walled vessels that permit the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and the body's cells. This process of exchange is called diffusion.
Which of the following is the narrowest classification of life?
domain |
|
family |
|
genus |
|
species |
The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.