| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.94 |
| Score | 0% | 59% |
__________ is caused by a lack of Vitamin C.
diabetes |
|
scurvy |
|
anemia |
|
shingles |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
Blood is created in:
bone marrow |
|
red blood cells |
|
the heart |
|
the liver |
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.
Within DNA, a variety of a particular gene is called a(n):
homozygous |
|
chromosome |
|
allele |
|
heterozygous |
The gene is the base unit of inheritance and is contained within DNA. A gene may come in several varieties (alleles) and there are a pair of alleles for every gene. If the alleles are alike, a person is homozygous for that gene. If the alleles are different, heterozygous.
Which of the following temperatures is least like the others?
absolute zero |
|
0K |
|
-273°C |
|
32°F |
Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.
When compared to eukaryotic cells, prokaryotic cells are:
more complex |
|
none of these |
|
similarly complex |
|
less complex |
Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.