The cell theory was constructed by s<span>chleiden and schwann.</span>
Answer:
These reactions are collectively called the urea cycle or the Krebs-Henseleit cycle. Ammonia is a toxic product of nitrogen metabolism which should be removed from our body. The urea cycle or ornithine cycle converts excess ammonia into urea in the mitochondria of liver cells.
I think B because Testosterone happen near the tests
Convergent evolution according to my records
