I believe the cultural considerations are religion and background.
The code for this procedure allows for imaging a patient twice.
A pulmonary perfusion imaging or pulmonary ventilation scan is used to check that how well air and blood are able to flow through your lungs. Pulmonary embolism is a condition in which two or more arteries are blocked by the blood clot in lungs and it is the fatal complication after the trauma.
The sentence “they save energy and metabolites and help the organisms to respond to the environmental changes” characterizes the regulatory mechanisms of gene expressions in organisms. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
Answer:
- Physical and chemical barriers
- non-specific innate responses
- specific adaptive responses
<u>The differences are...</u>
The first barrier is the physical and chemical barrier. It is the first line of defense when in contact with outside sources, this can be through the skin, earwax, nose-hair, etc.
The second barrier, the non-specific innate response, is after these outside sources have somehow managed to pass through the first barrier. They come into contact with cells and enzymes that help to defeat them.
The third barrier, the specific adaptive response, is the body's way of dealing with pathogens that the body has encountered before. (B cells activate)
The similarity between the the DNA and RNA molecules is that both of them are long polymers and they are made up of nucleotides.
The differences between the two molecules are as follows:
1. The sugar components of the DNA molecule are deoxyriboses while the sugar components of the RNA molecules are riboses.
2. The nitrogenous bases in DNA molecule are adenine, guanine, thymine and cytosine while the nitrogenous bases in the DNA molecule are adenine, guanine, uracil and cytosine.
3. The back bone of the DNA molecule is made of the deoxyriboses and phosphate while the back bone of the RNA molecule is made up of riboses and phosphate.
