Beef should be discarded when it has what kind of appearance? … Select one:
a. Bright red color.
b. Firm texture springs back to the touch.
c. Sticky, slimy or dry.
d. None of these answers are correct.

c. Sticky, slimy or dry.

Explanation:

Beef should be consumed within two to three days otherwise it went bad.

Beef that gone bad appeared sticky, slimy or dry due to the presence of some microorganism and bacteria present in meat. Microorganisms and bacteria breakdown the fat in meat and spoil the meat which is unsafe for consumption.

Hence, the correct option is c. Sticky, slimy or dry.

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.