Pseudomonas a. are resistant to many disinfectants and antimicrobials. b. are mostly harmless except for the opportunistic p. aeruginosa. c. require nutrient rich environments. d. do not contain plasmids. e. are resistant to many disinfectants and antimicrobials and are mostly harmless except for the opportunistic p. aeruginosa.

The best answer is option E.

Explanation:

Pseudomonas are gram-negative bacteria which is present almost everywhere air, soil, water and even indoors. These gammaproteobacteria are also present in some of the healthy people.

Pseudomonas is resistance to many antimicrobials and disinfectants. These bacteria are generally harmless but some opportunistic species like P. aeruginosa are infectious.

Thus, the correct answer is option E.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.