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.
The name Platyhelminthes means flat worms; there are about 15,000 living species. They live in marine and fresh water habitats, moist terrestrial environments, and inside other organisms as parasites. All have. : ectoderm on the outside, endoderm lining the gut, and mesoderm in between.he name Platyhelminthes means flat worms; there are about 15,000 living species. They live in marine and fresh water habitats, moist terrestrial environments, and inside other organisms as parasites. All have. : ectoderm on the outside, endoderm lining the gut, and mesoderm in between.