Which statements regarding heart failure in older adults are true? select all that apply?

• Causes of heart failure in older adults include coronary heart disease and mitral valve dysfunction.

• Sensitivity of beta adrenergic receptors decreases resulting in decreased ventricular contractility.

• It is more difficult to diagnose because of underlying chronic diseases.

Citation: https://quizlet.com/97649607/porth-patho-chapt-20-flash-cards/

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.