| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Herbivores are __________ that subsist on producers like plants and fungus.
primary consumers |
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tertiary consumers |
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secondary consumers |
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scavengers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
In the metric system, what prefix represents 103?
mega |
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kilo |
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milli |
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centi |
Kilo is the metric system prefix for 103.
All surface water is part of the:
atmosphere |
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hydrosphere |
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lithosphere |
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geosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).
Within DNA, a variety of a particular gene is called a(n):
homozygous |
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allele |
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chromosome |
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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.
When compared to eukaryotic cells, prokaryotic cells are:
none of these |
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less complex |
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similarly complex |
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more complex |
Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.