Carnivore:

A carnivore is something that only eats meat and does not eat anything else.

Example: Hyena, Polar Bears, Whales.

Herbivore:

An herbivore is something that only eats plants.

Example: Cows, Horses, Deer, Sheep

Producers:

A producers is an organism that makes its own food. All green plants are producers.

Example:  Apple tree, Orange tree, Watermelon, Banana Tree.

Consumers: A consumer is an organism that feeds on another organism. All animals are organisms and consumers.

Example: Bears, Lions, Baboons.