B. Sleep Disorders because thats mental
The answer is letter A.
Children will most likely gain 4-6 pounds each year until the end of puberty. Both males and females experience puberty, because this is the turning point of a human body's growth which makes reproduction and the continuity of species possible. Males tend to have reached the peak of their puberty at the age of 25 while females reach the end of theirs between ages 21-24.
<span>Identify the organ that produces sperm.
</span>The male reproductive system includes the scrotum, testes, spermatic ducts, sex glands, and penis. These organs work together to produce sperm, the male gamete, and the other components of semen.
The answer is D, since you are keeping your back straight. Your back will curve forward with poor posture.