The answers are
1. Matter
2. Biosphere
Answer:
For a limb to regenerate, you need bone, muscle, blood vessels and nerves. There are adult stem cells, a kind of undifferentiated cell that can become specialized, that regenerate muscle, but they don't seem to activate.
The liver is the main site
Answer:
because they have to be seperated
Explanation:
Answer: False
Explanation:
Some organisms have an advantage with some traits, but they could be a disadvantage in other situations.
