How does the amount of space between particles differ in the ballon and helium cylinder

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Which of these best describes an ionic bond?

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed