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Contact [7]
3 years ago
13

Which of the statements concerning blood collection in mice and rats is true?

Biology
1 answer:
Sindrei [870]3 years ago
8 0
The correct option is this: POTENTIALLY LESS PAINFUL ALTERNATIVES TO RETROORBITAL BLOOD COLLECTION INCLUDE LATERAL SAPHENOUS AND JUGULAR VEIN BLOOD COLLECTION.
Rats are very important in research work and they are often used to test the effects of various substances in the body. To do this, blood has to be collected from the rats and this can be done in various ways. But some methods of blood collection is more painful than the others. Collecting blood from the  retro orbital vein is less painful compared to other methods.<span />
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List the four macromolecules and the elements that compose them.
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( I'll put the rest in below )

4 0
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What does the medical term Sphygm mean
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What kinds of mutations can be inherited and which cannot?
Mars2501 [29]

Answer:

These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Acquired mutations in somatic cells (cells other than sperm and egg cells) cannot be passed to the next generation

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3 years ago
In plants that undergo double fertilization, the structure that forms to nourish the seed is called the
Lera25 [3.4K]

Answer:

In plants that undergo double fertilization, the structure that forms to nourish the seed is called the <u><em>endosperm</em></u>.

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The sperm cell and the egg cell will unite and form the zygote.

<u><em>On the other hand, the sperm which fuses with the two polar nuclei will form the endosperm.</em></u>

<u><em>The endosperm can be described as a nourishing tissue which provides the embryo with nutrients so that it can develop and mature. </em></u>

<u><em></em></u>

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Which statements are part of the safety protocol for this lab experiment? Check all that apply
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