Respuesta :
Nerve Net is considered as the simplest type of nervous system. This does not have a distinct central or peripheral regions, and lack anything that resembles a brain. The nerve cells are scattered in each layer of the body wall and these neurons send information from sensory organs. Based on the given choices above, the organism that has a nerve net that allows it to respond to a stimulus in a coordinated way is the HYDRA. The answer would be option C.
Organisms such as Hydra and Jellyfish possess a structure which is referred to as nerve net.
These organisms are invertebrates and thereby lack a back bone. They also
lack brains and the nerve nets helps to function as the sensory part of the
organism.
The nerve nets contain rich neurons which helps the organisms
in the coordination of movement and sensing of objects for food.
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