The Cỉculatory system is an organ system that permits blood to everywhere in the body and transport nutrients, oxygen, carbon dioxide, ...to help fighting diseases ,.... The main parts of the Circulatory system are heart , lungs , veins , vessels, arteries,...
Answer:
Explanation:
Based on the information provided within the question it can be said that there are various reasons for the placement of this, most of the reasons include,
- To prevent or reduce sensitivity and discomfort of the prepared tooth & surrounding structures
- To protect the margins of the preparation
- To maintain the function & esthetics of the tooth
- To prevent shifting of adjacent or opposing teeth
Answer:
The correct answer is b. He determined that DNA contains four nitrogenous bases.
Explanation:
Levene was an American biochemist who studied the structure of DNA in the early 1900s and in 1920 he found that DNA consists of four nitrogenous bases that are Adenine, Guanine, Thymine, Cytosine.
He also found deoxyribose sugar and phosphate group and said that nucleotide is the basic unit of DNA which contains a ribose sugar with attached nitrogenous base and phosphate group.
He also concludes that an equal amount of adenine, guanine, thymine, and cytosine makes the DNA which is now known as tetranucleotide hypothesis. So the correct answer is b. He determined that DNA contains four nitrogenous bases.
This would actually be known to originate in the "nucleic acid". This would have nothing to do with the DNA it's self, and also protein has nothing to do with it also.<span>Nucleic Acid would be small particals in the cells that would consists of molecules would some sort of chain which would then lead to the DNA, but it would actually have not resemblance of the nucleic acid at any point.
</span>A Virus Is A Piece Of <span>Nucleic Acid</span> Enclosed In A Capsid.
Answer:
hi here is your answer hope it helps
Explanation:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
