Predators require something else to make food, which means they are not:
humans animals infected competition dangerous producers mammals warm-blooded
A B C D E F G H
Predators are organisms which eat other organisms for energy.
Producers provide food for themselves and for predators.
Predators require something else to make food, which means they are not: (A) humans (B) animals (C) infected (D) competition (E) dangerous (F) producers (G) mammals (H) warm-blooded