an animal needs to eat food for nutrients & an animal / living thing requires nutrients for survival ->  an animal needs to eat food to survive  an animal needs to eat food to survive & if a living thing needs something to survive then that living thing depends on that something to survive ->  an example of a living thing depending on something to survive is an animal eating food  an example of a living thing depending on something to survive is an animal eating food & in the food chain process an animal has the role of consumer which eats producers / other animals for food ->  an example of a living thing depending on something to survive is an animal eating producers  an example of a living thing depending on something to survive is an animal eating producers & green plants are a kind of producer ->  an example of a living thing depending on something to survive is an animal eating a plant  an example of a living thing depending on something to survive is an animal eating a plant & a plant is a kind of living thing ->  an example of a living thing depending on another living thing to survive is an animal eating a plant  an example of a living thing depending on another living thing to survive is an animal eating a plant & a moose is a kind of animal -> an example of a living thing depending on another living thing to survive is a moose eating a plant