Answer:
According to the cell theory cell is the structural unit of all living organisms and viruses cannot be considered as living organisms according to this theory
Explanation:
Viruses are not made up of cells and they only contain genetic material like RNA or DNA. since viruses are not made up of cells they do no fit the classification of living organisms. To define living organisms other criterion like reproduction, maintenance of homeostasis and ability to adapt to the external environment are mentioned in the cell theory.
Viruses have the ability to replicate and adapt to even extreme conditions of their environment which makes the question of classifying viruses in the category of living organisms even more complicated.
Answer:
Mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). When mutations occur they can cause termination (death) of an organism or they can be partially lethal.
Answer: A. endocarditis
Explanation:
Endocarditis is the inflammatory process of the endocardium, especially that located in the heart valves. There are several factors causing endocarditis, the most frequent and lethal being endocarditis caused by infectious agents. The most common mechanism is endothelial injury due to blood flow turbulence, be the one generated by a defective valve (rheumatic, bicuspid aortic valve, dysfunctional valve prosthesis), or by any congenital anomaly that causes flow turbulence (interventricular communication, obstructive hypertrophic cardiomyopathy, aortic coarctation).
The most common site of injury, and therefore the most frequent site of vegetation formation, is at the closing line of a valve, usually on the atrial surface of the atrioventricular valves or on the ventricular surface of the ventriculoarterial valves. With the endothelial lesion occurs the formation of a sterile thrombus, which can be colonized by bacteria that multiply there, turning the thrombus into vegetation. These vegetations are avascularized, making the treatment of endocarditis difficult due to the low access of antibiotics to microorganisms.
Response because its not a stimulus garcia
