The 3Rs by Russell and Burch are known to be the "alternative methods" to improve the treatment of laboratory animals, at the same time to advance the quality of science that uses animals for studies.
The 3Rs are Replacement, Reduction, and Refinement. Replacement is defined as minimizing the pain and suffering of the animals used in research. Reduction is for reducing the number of animals being used, and using healthier animals. Replacement is using alternative to animals such as tissue cultures and computer models.
The way to memorize Erikson's stages of development is by the use of Mnemonic Device.
<h3>What is mnemonic device?</h3>
This is known to be a kind of memory method that often help a person to be able to increase your ability to remember and retain any kind of information.
Note that Mnemonic techniques act as a kind of memory aids and as such, The way to memorize Erikson's stages of development is by the use of Mnemonic Device.
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Answer:
Your retina is in the very back of the eye. It holds millions of cells that are sensitive to light. The retina takes the light the eye receives and changes it into nerve signals so the brain can understand what the eye is seeing.
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