the answers are 1 3 4 and 5
The answer will be a plant! Almost ever other organism gets its energy from another organism where as plants get theirs from sunlight, water, oxygen, and other non living things
Living things cannot live without eachother due to the food chain, if an animal loses it's food so will his predator and so on. Soon they will end up extinct, this is why it's important to take care of animals.