| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.67 |
| Score | 0% | 73% |
The heart __________ blood.
creates |
|
filters |
|
deoxygenates |
|
oxygenates |
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.
__________ is caused by a lack of iron in the diet.
shingles |
|
diabetes |
|
anemia |
|
scurvy |
Anemia, which may cause weakness, dizziness, and headaches is caused by a lack of iron in the diet.
Which of these is not a phase in cell division?
cytokinesis |
|
megaphase |
|
anaphase |
|
interphase |
Cell division is the process by which cells replicate genetic material in the nucleus and consists of several phases, beginning with interphase and ending with cytokinesis.
The gravitational interaction of Earth and the Moon is responsible for which of these?
the northern lights |
|
tides |
|
seasons |
|
day and night cycle |
Tides are caused by the gravitational interaction of Earth and the Moon.
Which of the following describes the Earth's mantle?
makes up most of Earth's volume |
|
all of these |
|
hot |
|
dense |
Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.