A good laptop with Microsoft Office pre-installed? I wanted to get a decent laptop that comes pre-installed with Microsoft Office and has at least a 120 GB Hard Drive. good laptop with Microsoft Office pre-installed? I wanted to get a decent laptop that comes pre-installed with Microsoft Office and has at least a 120 GB Hard Drive.
Other Platyhelminthes characteristics shared by these creatures is they are bilaterally symmetrical, this means the left and right sides of their bodies are mirror images of each other. They have distinctive head and tail ends and their body contains three cell layers.
Platyhelminthes are also known as flatworms because they are worms with a flat body. This is the main external morphological feature that differentiates them from nematodes (roundworms).. The most well-known representatives of platyhelminthes are worms that cause human diseases, such as taenia and schistosome. Planaria, since it has been extensively studied in Biology, is also well-known.