C...the animals will be attracted to eat the fruit and then spit out the seeds causing new life to grow
A star is a fusion reactor. Under enormous pressure, resulting from gravity, light nuclei of gases such as hydrogen merge to form helium, and since this process releases energy, the start begins to radiate the excess energy. Later on, helium fusion produces heavier elements, and so on.
Mitochondria, plastids and chloroplast all are surrounded by a double membrane
