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.
Answer:
False, all plants cells have cell membrane, in addition most of them have also cell wall. They have both
I think the answer is Endospore. I'm sorry if I'm wrong...
The relationship between the food we eat and the energy in our bodies is that food is converted to energy and without food we will not have energy, I think hopes this helped you out a little.