| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
Which of these does not contain oxygenated blood?
aorta |
|
left ventricle |
|
pulmonary vein |
|
right atrium |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.
A transition zone between two air masses is called:
front |
|
thunderstorm |
|
fog |
|
boundary |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
In cell biology, where does DNA replication take place?
nucleus |
|
Golgi apparatus |
|
cytoplasm |
|
mitochondria |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
In the food chain, consumers are classified as which of the following?
all of these |
|
primary |
|
secondary |
|
tertiary |
Most animals consume other organisms to survive. Consumers (heterotrophs) are divided into three types, primary, secondary, and tertiary, based on their place in the food chain.
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
animals |
|
habitats |
|
minerals |
|
plants |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).