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LekaFEV [45]
3 years ago
13

The __________ includes all of the water that is underground, in surface bodies, and in the atmosphere.

Biology
1 answer:
stellarik [79]3 years ago
6 0
The answer is hydrospherd
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Hunt and her team designed an experiment to test her hypothesis about the effect of BPA on mice. They administered daily doses o
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Answer and Explanation: The figure below shows the doses of BPA administered to the female mice over time.

An experiment is used to determine cause and effect among variables. When the research is for the impact of a treatment, researchers randomly separate individuals in two groups:

  • <em><u>Control</u></em> <em><u>Group</u></em> doesn't receive any treament or a placebo or a treatment whose outcome is already known;
  • <em><u>Treatment</u></em> <em><u>Group</u></em> receives the treatment;

For the female mice on the image below, in the First Group is not injected any dosage of BPA, so they are the control group, while the <u>others</u> are <u>treatment group</u>.

The variables in a experiment are classified as independents or dependents:

  • <em><u>Independent</u></em> <em><u>Variable</u></em> is the cause;
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For the BPA research, since it is the effect of BPA over time on the mice's cells it is being investigated, <u>dosage</u> of BPA is the <u>independent</u> variable and <em>time</em> is the <em>dependent</em> variable.

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The boundary between the middle and inner ear is the
Kamila [148]
<span>It is separated from the external ear by the
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The cells in your body need nutrients and other materials to stay alive. To be used by your cells, the materials must be
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