| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.09 |
| Score | 0% | 62% |
In taxonomy, domains are the broadest classification of life. How many domains are there?
6 |
|
3 |
|
dozens |
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5 |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
Velocity is the rate at which an object changes position. What is the formula for velocity?
\(\vec{v} = { t \over \vec{d} } \) |
|
\(\vec{v} = { \vec{d} \over t } \) |
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none of these |
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\(\vec{v} = \vec{d}t \) |
Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)
In cell biology, where does DNA replication take place?
cytoplasm |
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mitochondria |
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Golgi apparatus |
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nucleus |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
Neurons are part of the __________ nervous system.
peripheral |
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central |
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somatic |
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autonomic |
The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.
Which of the following is the smallest component of an element that still retains the properties of the element?
atom |
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molecule |
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element |
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neutron |
An atom is the smallest component of an element that still retains the properties of the element.