This is an experiment on how planaria regenerate body parts and an explaination as to how the experiment was performed.

Abstract

This experiment was undertaken to evaluate the varying degrees and limitations of regeneration using flatworms. re-formation occurs in many levels by dint ofout the animal kingdom. The flatworms demonstrated considerable healing abilities once the surgery had been performed. Total regeneration and riposte had occurred resulting in terzetto separate flatworms from one that had been turn off through three quarters of the length of the personate.

Introduction

Planaria belong to the phylum Platyhelminthes (flatworms). They be free-living, flat bodied, freshwater animals that demonstrate the notable ability to re-create their lost body parts. In some genera, when a wiz individual is divided into two or more parts, from each one part can regenerate an entirely new flatworm (Johnson). In addition to reproducing asexually by regeneration, the hermaphroditic planaria feature an internal reproductive frame. When two flatworms join, each exchanges spermatozoon and fertilizes the others eggs. Their simple body plan also allows them to regenerate bring to pass bodies from mere fragments by asexual reproduction. Their body plan lie of a simple nervous system that includes a yokelish brain, central nervous system, muscles, an internal reproductive system, intestines and an excretory system that includes specialized flame cells. In this experiment, a flatworm was use to assess the regeneration process over the course of three weeks.

Materials and Methods

·Remove crosspatch container from freezer, snap it shut and place on the stage of a dissecting microscope.

·With a camels hair brush guardedly place one flatworm on the center of the ice container surface.

·Wait until the animal has flattened out.

·Use a clean, nippy razor blade to make a quick cut from the tip of the head area (between the eyespots) through three-quarters the length of the flatworms body allowing the pharynx to go to one side or the other.

· come out will have to be renewed every xii hours for...

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