The answer is letter
A.
<span>
Dead cells can be
found on the surface of the skin. This is because every day the skin sheds dead
cells that come from the epidermis which is usually caused by sweat. The
epidermis is the outermost layer of the skin which acts out as the barrier of
the body against the environment. It prevents infections by protecting the skin
from pathogens that may enter the system and it regulates the amount of water
that the body releases into the atmosphere in the form of sweat. </span>
The purpose of the organs of the male reproductive system is to perform the following functions:
-To produce, maintain, and transport sperm (the male reproductive cells) and protective fluid (semen)
-To discharge sperm within the female reproductive tract during sex
-To produce and secrete male sex hormones responsible for maintaining the male reproductive system.
Unlike the female reproductive system, most of the male reproductive system is located outside of the body. These external structures include the penis, scrotum, and testicles.
Blood carrying carbon dioxide is sent from the heart to the lungs from the pulmonary artery
