4
Question
The first animals to have nervous were probably similar to modern
The first animals to have nervous were probably similar to modern
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Solution
The correct option is B Cnidarians
Nerve net is a diffuse network of nerve cells that serves to connect the sensory cells in the body wall to contractile and gland cells. These sensory cells receive impulses and stimuli while nerve cells conduct impulses in all directions and help Hydra (cnidarians) to respond. This is the simplest and the most primitive form of the nervous system which is observed in the cnidarians.Thus, the correct answer is option C.
Nerve net is a diffuse network of nerve cells that serves to connect the sensory cells in the body wall to contractile and gland cells. These sensory cells receive impulses and stimuli while nerve cells conduct impulses in all directions and help Hydra (cnidarians) to respond. This is the simplest and the most primitive form of the nervous system which is observed in the cnidarians.
Thus, the correct answer is option C.
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