The membranes that surround the nucleus and other organelles are almost identical to the cell membrane. Membranes are composed of phospholipids, proteins and carbohydrates arranged in a fluid mosaic structure, as shown in this diagram.
Mud or dirt dauber wasps are often solitary wasps that are found along the eaves of the garage, and the best treatment is to simply scrape away their nest.
Mud dauber (sometimes called dirt dauber, dirt digger, dirt dobber, dirt diver, or mud wasp) is a name commonly applied to a number of wasps from either the family Sphecidae or Crabronidae that build their nests from mud.