| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.52 |
| Score | 0% | 70% |
A person's genotype is their genetic makeup and includes:
both dominant and recessive alleles |
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dominant alleles |
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phenotypes |
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recessive alleles |
A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
atom |
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proton |
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neutron |
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electron |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
Atoms of an element whose atoms can vary in the number of neutrons in their nucleus are called which of the following?
ions |
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products |
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reactants |
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isotopes |
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.
Stratus clouds are __________clouds characterized by horizontal layering with a broad flat base.
all-altitude |
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high-altitude |
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mid-altitude |
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low-altitude |
Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.
Molecules and atoms that are inputs to a chemical reaction are known as which of the following?
reactants |
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fuel |
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products |
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components |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).