Well, I don't fully understand your question. I think I know what you're getting at though.
In a system of sexual reproduction, you have genes coming from both an egg and the sperm. Therefore, it'll only contain half the total amount of chromosomes (46 in humans). A sperm will have 23, and the egg will have the other 23. Is that what you meant why the chromosomes are cut out in pairs? If that wasn't your question, please elaborate and I'll return to answer it to the best of my capabilities.
The answer is; providing one-on-one supervision during meals and for one hour afterwards.
<em>Hope this helped! :)</em>
- Ureter transfer the urine from out kidney to the uninary bladder
-Urinary bladder's responsibility is to keep the urine until its full
-Uretra channels the urine out of the body..
Its release when it has a phosphate group removed
