'Limb' implies

Directions: Read the passage carefully and answer the question that follows.

All snakes are hunters and predators, feeding on the animals and sometimes their eggs. Having no limbs, snakes cannot hold their preys down to bite; hence, they usually swallow them whole. Poisonous snakes sometimes do immobilise their preys with their venom to make consumption easier. It is truly a myth that poisonous snakes attack humans for food. Humans can never be their targets for food as we are normally too big for them to swallow. In cases where snakes do bite, these attacks are usually defensive ones and the venom injected is normally little or sometimes even none. The full fatal dose of the venom is only released on smaller animals which the snakes can swallow easily. Besides helping in the killing and immobilising of their preys, the poison also acts as digestive agents for snakes.