Answer:
the umbilical cord is connected to both the mother and the unborn child and so tranfers nutrients from the mothers blood to that of the baby's blood
<span>Lactic acids are provided to help the body go without oxygen for a time period</span>
False, It will basically be a carbon sink. Taking in more than it produces.
The answer is B, pollution releases because it negatively affects the environment
Answer: Cells have specific jobs they have to do, like for example, reproduction, cells help in the reproduction of organisms. Energy metabolism, some cells help with nutrients and oxygen. Regeneration, if you get a cut or a scrape, some cells help to heal that wound. And information transfer, this is when we get information in our brain.
Hope this helps!