The reason is because in reality that's all we are
plants and animals die and then decay to release carbon compound in then
decay
Gamma radiation is most damaging to humans.
Their bodies decay, and are also eaten by other animals, which in turn poop the nutrients into the soil.
nothing
They stay on the ground and eventually decay.
Yes they can. And they can get very sick from tooth decay as well.
Through respiration, decay, urination and defecation.
fungi and animals
Decay helps in the ecosystem by rotting in the gorund and turning into fertilize for the animals and it also tuns into plants trees and ext.
Vultures - not one of my favorite animals. They eat dead stuff (animals) so it can decay faster.
Animals will lose nitrogen when they die. This is whey decay and nitrogen is released as ammonia into the air.