It's A. Primary succession :) because Human economics and ecology are linked together because human economics utilizes the ecosystem and the natural resources in older for economics to actually exist. :)))))))
Answer:
The correct option is A.
Explanation:
Atherosclerosis: It is defined as a disease in which due to build up of plaque the inside of an artery narrows. In initial stage of this disease generally no symptoms occurs, in severe condition it can cause kidney problems, stroke, build up of cholesterols in the walls of large arteries, peripheral artery and coronary diseases.
Cause of Atherosclerosis is unknown, but risk factors include high blood pressure, diabetes, smoking, abnormal cholesterol levels, unhealthy diet, and obesity.
The answer is B, bird flu. The other diseases have been around much longer than bird flu has. Bird flu has been in Asia since 2003, but didn't reach Europe and the middle east until 2005, making bird flu a very new disease.
Answer:
Gene therapy to correct defective genes that cause diseases.
Explanation:
- Gene therapy refers to the procedure that involves the introduction of nucleic acids (DNA or RNA) into the cells of an organism for the purpose of correcting abnormalities, such as a mutations or in other words to treat a genetic disease.
- Gene therapy entails bringing a normal and functional gene known as a trans-gene into a cell with altered gene. Another method can bring RNA capable of partially regulating or blocking the expression of an altered gene.
- The nucleic acids are introduced into the patient's cells by means of a viral vector or injected directly into the cells in the form of naked DNA.
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I would say the respiratory system (the lungs) fail. The lungs are to receive oxygen and it sends it to the heart.
I am not much of a biology nerd but I am taking an educational guess.
All I can say that the lungs need oxygen. Without oxygen, the heart will stop pumping blood and you will be suffocating with this essential. That is why you should never smoke and actually take great care of your precious body.
