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kupik [55]
3 years ago
14

What argument does dr. douglas use with dr. brodus to allow the study to continue

Biology
1 answer:
lions [1.4K]3 years ago
7 0

The argument or the reason that Dr. Douglas used with Dr.

Brodus in allowing the Tuskegee study to continue despite of certain

circumstances was because of validation in terms of the autopsy in which he

stated that is needed in order to know whether the study is reliable and it is considered

to be science.



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Which of the following best explains why what we know about cells is called a theory and not a law?
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The correct answer should be A) Cell theory explains cell behavior where a law would describe it


Theories are used to explain phenomena, while laws just describe what will always happen. Such as the law of thermodynamics that describes what is going on inside a room when heat leaves it.



3 0
3 years ago
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A cell’s chromosome contains<br> 1.genes<br> 2.chlorophyll <br> 3.sperm<br> 4.eggs
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They would contain genes
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The sun is directly overheated at the equator on which day of the year
timurjin [86]

Answer: June 21st

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4 years ago
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Who mandates that employers of emergency responders must take certain measures to protect employees who are likely to be exposed
Ivan

Answer:

A.OSHA

Explanation:

The complete question is as follows:

Who mandates that employers of emergency responders must take certain measures to protect employees who are likely to be exposed to blood and other body​ fluids?

A.OSHA

B.UNICEF

C.CDC

D.USMLE

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3 0
3 years ago
4 a muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cell
stiks02 [169]

In the case of the muscular cramps, the muscle contraction starts with the generation of the action potentials from the brain. The action potential causes the release of the calcium ions movement out of the sarcoplasmic reticulum (storage site of calcium). The calcium released in this process causes the contraction of the myofibrils with the help of the ATP molecules. Meanwhile, the calcium is pumped back to the sarcoplasmic reticulum through the fast calcium pumps.  

The contraction of one muscle cell generate the action potential in neighboring muscle cells. When the generation of the action potential is stopped, the sarcoplasmic reticulum relaxes as well as the muscle is relaxed. The fast calcium pump is powered by a sodium gradient, and the calcium influx is a result of fast outflux of the sodium ions from the sarcoplasmic reticulum.

In case, the sodium ion is less, the calcium pumps cannot be powered, the calcium ion would remain in myofibril, as a result, the muscle would be contracted for a longer time and this result in cramps. The muscle in this case, would be relaxed by the ATP instead of sodium gradient. So, it can be concluded that the muscle cramps are caused when the muscles are not able to relax properly.  


3 0
3 years ago
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