Examples from the Web for Perth Amboy. Historical Examples. This will bring you in a short time to the Metuchen road, and this should be kept to for about four miles beyond Perth Amboy. Harper's Round Table, July 16, 1895 Various. The assembly under the union met alternately at Perth Amboy and at Burlington. The Quaker Colonies Sydney G. Fisher.
Planaria is a small aquatic genus of flatworm. The term is also used for other similar flatworms. They are fresh water animals which move in a smooth wave-like manner.Planaria are free-living.They can live in fresh water or very damp soil, depending on the type.he term is also used for other similar flatworms. They are fresh water animals which move in a smooth wave-like manner. Planaria are free-living. They can live in fresh water or very damp soil, depending on the type.
Planaria. Planaria (Platyhelminthes) are free-living flatworms that live in freshwater. They are typically found under rocks and debris in streams, ponds, and springs. Planarians are interesting to study for a variety of reasons. First, planarians have bilateral symmetry with two nerves extending the length of the body, an enlarged brain (ganglion cell), and two eye spots. The eye spots are sensitive to light. Planarians move away from the light and are most active in the dark. Second, light and water current can be used demonstrate kinesis (change of speed) and taxis (change of direction).