| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.38 |
| Score | 0% | 68% |
These clouds grow upward and can develop into cumulonimbus or thunderstorm clouds.
nimbus clouds |
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stratus clouds |
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cirrus clouds |
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cumulus clouds |
Cumulus clouds are large, puffy, mid-altitude clouds with a flat base and a rounded top. These clouds grow upward and can develop into a cumulonimbus or thunderstorm cloud.
Within DNA, a variety of a particular gene is called a(n):
homozygous |
|
chromosome |
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heterozygous |
|
allele |
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.
Elements in the Periodic Table of the Elements are ordered by which of the following?
atomic mass |
|
number of electron shells |
|
atomic weight |
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atomic number |
The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
element |
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compound |
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atom |
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molecule |
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.
The biosphere consists of which of the following?
all of these |
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atmosphere |
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hydrosphere |
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lithosphere |
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).