| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.47 |
| Score | 0% | 69% |
In the metric system, what prefix represents 10-3?
kilo |
|
milli |
|
centi |
|
mega |
In the metric system, milli is the prefix for 10-3.
Tertiary consumers eat which of the following?
decomposers |
|
all of these |
|
primary and secondary consumers |
|
producers |
Tertiary consumers eat primary consumers and secondary consumers and are typically carnivorous predators. Tertiary consumers may also be omnivores. Examples include wolves, sharks, and human beings.
Which of blood component fights infection?
red blood cells |
|
white blood cells |
|
platelets |
|
plasma |
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.
In the Periodic Table of the Elements, atomic number is equal to which of the following?
number of electrons orbiting the nucleus |
|
number of protons + neutrons in the nucleus |
|
number of protons in the nucleus |
|
number of neutrons in the nucleus |
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.
Which of blood component allows blood to clot?
red blood cells |
|
platelets |
|
white blood cells |
|
plasma |
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.