| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
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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decomposers |
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scavengers |
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.
__________ and __________ pair to strengthen bones.
iron, calcium |
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vitamin D, calcium |
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calcium, vitamin A |
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vitamin D, magnesium |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
Which of these foods should a person with high cholesterol avoid?
vegetable oils |
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eggs |
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avocados |
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olive oil |
Fats come in three types, saturated (meats, shellfish, eggs, milk), monounsaturated (olives, almonds, avocados), and polyunsaturated (vegetable oils). Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
Within DNA, a variety of a particular gene is called a(n):
allele |
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chromosome |
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homozygous |
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heterozygous |
The gene is the base unit of inheritance and is contained within DNA. A gene may come in several varieties (alleles) and there are a pair of alleles for every gene. If the alleles are alike, a person is homozygous for that gene. If the alleles are different, heterozygous.
Which of these is not a phase in cell division?
megaphase |
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cytokinesis |
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anaphase |
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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.