The answers are:
Zinc ,Iron , Copper , silver , lead , mercury .
Explanation:
Oxygyn will get stuch if the muscles are thich
Sex is a reproduction system involving both male and female to partake in sexual activity intercourse to create an offspring between the two beings creating a living organism
The _Embryo_ is the answer
Hope this helps
the male reproductive system consists of external organs. while the female reproductive system consists of internal organs.
