Answer: Answer is polonium aka C
Explanation: nickel damages your lungs and decreases your life span, but so does every other chemical in your question hope this helps
Answer:
It is most likely A.
Explanation:
All of the others have to do with emotion.
Answer
They produce hormones and sperm
Explanation
The Testes are a pair of ovoid glandular organs which are responsible for the production of sperm cell and the male sex hormone called testosterone. The testes produce 12 trillion sperm in a male’s life time. A single ejaculation releases 400 million sperm. Testes are therefore the major reproductive organs of the male. The epididymis nourishes the sperm themselves. The scrotum is the pouch like skin that protects the testes. Copulatory has to do something with sexual activities
The answer is evolutionary!
I hope I was able to help. :)
