What are cells surrounded and protected by?

The cell wall is a mesh of fibers that surrounds the plasma membrane. It protects and supports the cell.

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.