| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.62 |
| Score | 0% | 72% |
Elements in the Periodic Table of the Elements are ordered by which of the following?
atomic weight |
|
number of electron shells |
|
atomic number |
|
atomic mass |
The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.
A dominant trait will be expressed when paired with:
a dominant trait |
|
a gene |
|
a recessive trait |
|
a chromosome |
The traits represented by genes are inherited independently of each other (one from the male and one from the female gamete) and a trait can be dominant or recessive. A dominant trait will be expressed when paired with a recessive trait while two copies of a recessive trait (one from each parent) must be present for the recessive trait to be expressed.
In the metric system, what prefix represents 103?
kilo |
|
milli |
|
centi |
|
mega |
Kilo is the metric system prefix for 103.
Heredity is the passing on of physical or mental characteristics genetically from one __________ to another.
family |
|
cell |
|
species |
|
generation |
Heredity is the passing on of physical or mental characteristics genetically from one generation to another. Heredity is made possible via large strings of chromosomes which carry information encoded in genes.
50°F is how many °C?
122 |
|
10 |
|
58 |
|
-10 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (50 - 32)\)
\(C° = {5 \over 9} (18)\)
\(C° = {90 \over 9}\)
\(C° = 10\)