| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.03 |
| Score | 0% | 61% |
The two heart chambers that pump blood called:
valves |
|
ventricles |
|
aorta |
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atria |
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.
Which of these is not a phase in cell division?
cytokinesis |
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interphase |
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anaphase |
|
megaphase |
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.
Atoms of an element whose atoms can vary in the number of neutrons in their nucleus are called which of the following?
ions |
|
isotopes |
|
products |
|
reactants |
The atomic mass of an element listed in the Periodic Table represents the average mass of a single atom of that element and is measured in atomic mass units (amu). This number is an average as some elements have isotopes with atoms that vary in their number of neturons and, therefore, differ in weight.
During digestion, after proteins are broken down where does the undigested food go next?
large intestine |
|
stomach |
|
small intestine |
|
esophagus |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
__________ is caused by a lack of Vitamin C.
anemia |
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shingles |
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scurvy |
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diabetes |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.