Q: hi, my name is renessa and i am 20 years.
A: Hi, my name is RENESSA and I am 20 years.

Q: polycythemia vera is a blood disorder that involves the thickening of the blood due to an overproduction of red blood cells by the bone marrow.
A: Polycythemia vera is a blood disorder that involves the thickening of the blood due to an overproduction of red blood cells by the bone marrow.

Q: in the case that your usr file doesn't open, it is highly likely that you do not have the correct software application installed on your pc to view or edit usr file extensions.
A: In the case that your USR file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit USR file extensions.

Q: 3. the living being's sensory organs are created through the action of nature
A:
3. The living being's sensory organs are created through the action of Nature