Anemia is a condition in which you lack enough healthy red blood cells to carry adequate oxygen to your body's tissues. Having anemia can make you feel tired and weak. There are many forms of anemia, each with its own cause. Anemia can be temporary or long term, and it can range from mild to severe
I'm not sure that this is 400 words but this is what I came up with.
Explanation:
Two organs involved in Male reproductive system are.,Testes and scortum