| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.71 |
| Score | 0% | 74% |
In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:
primary consumers |
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producers |
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scavengers |
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decomposers |
Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.
Which of these represents the path of blood flow through the heart?
right atrium → right ventricle → lungs → left atrium → left ventricle |
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left atrium → right ventricle → lungs → left atrium → right ventricle |
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right atrium → left ventricle → lungs → left atrium → right ventricle |
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left atrium → left ventricle → lungs → right atrium → right ventricle |
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.
Heredity is the passing on of physical or mental characteristics genetically from one __________ to another.
species |
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cell |
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family |
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generation |
Heredity is the passing on of physical or mental characteristics genetically from one generation to another. Heredity is made possible via large strings of chromosomes which carry information encoded in genes.
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
vertebrate |
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sentient |
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spiny |
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arthropod |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
In the heart, blood flows from the right __________ to the lungs then back to the heart via the left __________.
ventricle, atrium |
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atrium, ventricle |
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atrium, atrium |
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ventricle, ventricle |
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.