Answer:
Kidneys, ureters and bladder
B or d.... hope this helps:)
Answer:
I think the dugong since it's bigger
The correct answer is B !! Both are interdependent thus forming a mutualistic association !!
As both can not live without each other thus making obligate !!
so They share obligate mutual association !! Go with B !!
Caused by sexual contact are more difficult to treat..
