In aquatic animals with lateral-line systems, movements of water in relation to the body surface stimulate receptors located in the _______, allowing the animals to detect movements of other animals.

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The lateral-line system in aquatic animals contains mechanoreceptors called neuromasts, which are located in structures called cupulae. These receptors detect water movements, helping the animal sense its environment and the presence of other animals.

In Aquatic Animals with Lateral-Line Systems, Movements of Water in Relation