I believe it would be a primary succession.. (I may be wrong)
The correct answer should be loss.
When your skin is cut open, obviously a little blood will run out as a result of that. This case is no different - the person who fell and has an abrasion on the knee will experience a slight loss of blood through that tiny wound which is the result of them falling on the ground.
I’m pretty sure it’s sperm
Answer:
Sickle cell anaemia is what I think is the answer
