| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.24 |
| Score | 0% | 65% |
Examples of primary consumers include:
all of these |
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rats |
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fish |
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cows |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
The gravitational interaction of Earth and the Moon is responsible for which of these?
seasons |
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the northern lights |
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day and night cycle |
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tides |
Tides are caused by the gravitational interaction of Earth and the Moon.
In the heart, blood flows from the __________ ventricle to the lungs then back to the heart via the __________ atrium.
left, left |
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right, left |
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left, right |
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right, right |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.
Atoms of an element whose atoms can vary in the number of neutrons in their nucleus are called which of the following?
isotopes |
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ions |
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products |
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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.
The ozone layer is in which of Earth's atmospheric layers?
thermosphere |
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troposphere |
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mesosphere |
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stratosphere |
The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.