If plants could not feed other living things animals of...
The Meaning of life is to support life and create change.
If no living thing supported other life their would be no life. For example leaving a child in the wilderness but plants and animals could not support the child the child would have nothing to eat and therefore die. If plants could not feed other living things animals of all sorts wouldn't be able to sustain life. And other animals would be unable to feed their predators, ect. So, why should a living thing live if life can not continue after it? This provokes creativity and the want to make a change in the world. So they will be remembered and their life and death will matter. Because if their is nothing to remember someone for, the person therefore had no life. No one remembers the explorers that aided Lewis and Clarke but they provoked a change in the world and their life had meaning. We have knowledge of their existence even if we don't know their name or birthday; because life is not measured by the number of breaths you take it is measured by the impact you have left on this world.