| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.48 |
| Score | 0% | 70% |
Which of these is not a recognized blood type?
B |
|
AO |
|
O |
|
AB |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.
Molecules and atoms that are inputs to a chemical reaction are known as which of the following?
products |
|
components |
|
fuel |
|
reactants |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
Traits represented by genes may be which of the following?
all of these |
|
recessive |
|
dominant |
|
expressed |
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.
__________ and __________ pair to strengthen bones.
vitamin D, magnesium |
|
calcium, vitamin A |
|
iron, calcium |
|
vitamin D, calcium |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
Which of the following does not represent the freezing point of water?
32°F |
|
0°F |
|
0°C |
|
273K |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.