What are molecular organizers of cell? how do they work?

Explanation:

protect cells and organelles from the surrounding environment

The Spemann's organizer sends out signaling molecules, which takes signals to all the cells in the body, telling them what to do. These signaling molecules include proteins (to signal the start of an activity), inhibitors (to stop a protein from acting), and proteases (to break down a protein or inhibitor).

Explanation:

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.