it is the larynx.
Thé human's larynx (voicebox) vibrates to produce sound
Energy in humans is in the form of ATP molecules (adenosine triphosphate)
The testicles produce sperm once the male is beginning to reach sexual maturity.
A tiny structure that removes wastes from the blood and produces urine is the kidney. Humans have two kidneys located, one on each side, in the lower back.
the structure needed by humans to stand and move is the bone and the muscles
Humans produce about 40,000 litres of saliva in a lifetime.
Animal cell structure differs from that of humans because humans have several billion cells and animals sometimes only have one. However, the basic structure of each cell is similar.
The transducer vibrates, producing vibrations in the air in the decibel scale audible to humans.
the biosphere
I think they can.
Humans produce animals with certain desirable characteristics through selective breeding.
Humans produce saliva to be able to break down food in their mouths to further ready it for digestion. Saliva contains different enzymes that break apart the food, making it possible to swallow big pieces of steak and apple and salad and so on.