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adoni [48]
4 years ago
7

What did Paul Ehrlich bring to focus? Paul Ehrlich brought to focus the argument that is responsible for the world’s environment

al problems.
Biology
2 answers:
quester [9]4 years ago
7 0

<u>Answer:</u>

<em>Paul Ehrlich brought to focus the problem of environmental Pollution and the Climate change, the argument that is responsible for the world’s environmental problems.</em>

<u>Explanation:</u>

<em>Paul Ehrlich</em> stated that we are unprepared to face the effects of the environmental problems. The environmental problem has arisen due to the over consumption of the<em> resources according to Ehrlich. </em>

According to him we have already released enough <em>amount of poisonous substances</em> in the environment which affects our human tissue in a bad way. Ehrlich states that fate of humanity is going to collapse if the activities of <em>exploitation of environment</em> is left unchecked.

alina1380 [7]4 years ago
6 0

Answer:

He brings to focus the research and the use of chemical substances against infections.

Explanation:

Paul Ehrlich was born in Strehlen, Prussia, on March 14, 1854, in an influential Jewish family. As a medical student at the University of Leipzig, he conducted several researches on the presence of foreign substances in the body and on dyestuffs and their application in the study of different toxic processes. From 1889 onwards, he concentrated on research on immunological processes and on the study of some toxins, such as diphtheria, which led to the establishment of the theory of antibodies developed by the organism in reaction against microbial disorders. Subsequently, it analyzed the action and efficacy of several therapeutic agents and chemicals and proved its lethal effect on some pathogenic protozoa.

His studies on cell and tissue staining processes and their classification of chemical dyes into acids, both basic and neutral, revolutionized laboratory methods and opened new horizons for the treatment of infectious diseases. In the field of chemotherapy, after conducting hundreds of experiments with highly toxic chemical compounds, in 1909 he managed to transform arsenous anhydride into organic derivatives and obtain a new preparation, Salvarsan, which became the main medication against syphilis, until the appearance of penicillin and new antibiotics.

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3 years ago
We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
Alina [70]

Answer: Option B) phosphate; hydroxyl; 3'

We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the phosphate group attached to the 5' carbon atom of the sugar portion of a nucleotide and the hydroxyl group attached to the 3'

carbon atom

Explanation:

For both RNA and DNA, chemical groups such as phosphate (PO3-) attaches to the 5' carbon of the pentose sugar (deoxyribose in DNA, ribose in RNA).

While hydroxyl group (OH) attaches to the 3' carbon atom of the pentose sugar.

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3 years ago
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3 0
4 years ago
After a big meal, in those individuals who do not have type i diabetes, the pancreas secretes insulin, which circulates through
chubhunter [2.5K]
This is an example of negative feedback. 

After a big meal, glucose levels in the bloodstream increases. The body recognises this change and goes through homeostasis, or the regulation of bodily state or internal environment.

The pancreas secretes insulin, which then binds to insulin receptors. This will result in the uptake of excess glucose from the bloodstream into cells and converted into glycogen to be stored in cells as energy storage molecules. 

Since there is the counter effect of body (i.e. when blood-glucose concentration increases, the body sends a signal to decrease the blood-glucose concentration, this is called a negative feedback (instead of a positive feedback, which occurs if for e.g. the body signals cells to increase blood-glucose concentration even after blood-glucose concentration increased after a heavy meal).

Hope this helps! :)
7 0
4 years ago
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