Answer:
features that appear during puberty in humans, and at sexual maturity in other animals
Explanation:
An endocrine structure in the male reproductive system is the testes or also called gonads.
The testes is identified as an endocrine gland due to its ability to secrete hormones such as the testosterone. This hormone is necessary in the development of the male physiological characteristics and contributes to the formation of the secondary sex characteristics.
I believe the correct answer would be "different systems".
Hope it helps!
I think it's B, because recycling reduces mining and drilling, both of which cause air and water pollution. Hope this made sense lol it's the closest one to the the true answer
CORRECT
