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ella [17]
3 years ago
13

What is the primary purpose of the "3rs" concept from russell and burch?

Social Studies
2 answers:
Elan Coil [88]3 years ago
8 0
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.
lilavasa [31]3 years ago
4 0
The 3Rs have a wider range than merely inspiring another course of action to animal testing but goal to develop animal well-being and scientific excellence where the use of animals cannot be evaded. These 3Rs are now explicit in legislation governing animal use in many countries. It is normal to exploit the first letter of each of the three 'R' principles to avoid uncertainty and clarify mention to the 3Rs principles.
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Under the Constitution, the federal government is one of limited powers, while the states more or less retain all powers not exp
evablogger [386]

Answer: True

Explanation:

The federal government possesses only those powers delegated to it by the Constitution. While the state and the people have the remaining power.

This was necessary, so the state and the people could have freedom of right and address some decisions which doesn't seat well with them when proposed by the Federal government.

8 0
3 years ago
Earthworms don't have eyes like we do. Can earthworms respond to light?
Alex73 [517]

Answer:

Claim 2: Earthworms can respond to light.

Explanation:

Yes, earthworms do not have eyes. However, sensory organs of animals isn't restricted to the eyes alone. Other sensory organs include, ears for hearing, nose for smelling and so on. In terms of response to light, the eyes as a sense organ comes into play. However, the skin is also a sense organ which has the ability to feel the effect of a phenomenon such as as heat or respond to touch. Because light produces heat, earthworms can respond to light through their skin. With their skin they can measure the intensity of light falling in them and adjust depending on their current body temperature.

Therefore, earthworms can respond to light with their skin.

7 0
3 years ago
Which of the following human activities does not increase the rate of erosion?
Ket [755]

Answer:

the cultivation of less land

Explanation:

all of the others results are wearing down the earth while the cultivation of less land uses less land.

4 0
3 years ago
At the family dinners Peggy is getting to the age where she is overwhelmed by all the noise and chaos around her. She tries to i
Tamiku [17]

Answer: selective

Explanation:

She is trying to be selective ,to focus on one particular thing but distractions keep coming.

7 0
3 years ago
With respect to online auctions, what are some of the risks faced by sellers?
Aneli [31]

Answer: There are many risks. Online auctions are one of the most successful business in the internet.

In this cases can happen manipulation, the products can be fake, the site may be not real, fraud.

It is important to have knowledge about the site and, do some research before buying, is important to protect yourself.

4 0
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