| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.91 |
| Score | 0% | 58% |
Which of the following describes how a person's genes express themselves in physical characteristics?
chromotype |
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phenotype |
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genotype |
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DNA |
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.
Which of the following is the formula for power?
\(P = w t\) |
|
\(P = {w \over t}\) |
|
\(P = \vec{w}t\) |
|
\(P = {\vec{w} \over t}\) |
Power is the rate at which work is performed or work per unit time: \(P = {w \over t}\) and is measured in watts (W).
Respiration is the process by which __________ absorb oxygen and eliminate carbon dioxide.
bronchioles |
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blood cells |
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capillaries |
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diaphragms |
The respiratory system manages respiration which is the process by which blood cells absorb oxygen and eliminate carbon dioxide.
In the classification of life, bacteria, archaea and eukaryota are which of the following?
classes |
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domains |
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species |
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kingdoms |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
element |
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atom |
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molecule |
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compound |
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.