MAIN IDEA I will identify, describe, and classify lines, line segments, and rays. New Vocabulary line ray endpoint line segment parallel intersecting perpendicular 394 Chapter 10 Geometry Lines, Line Segments, and Rays 10-4 Farmers often plant crops like corn in rows. The rows resemble line segments.
Wiktionary(0.00 / 0 votes)Rate this definition: mosaic(Noun) A piece of artwork created by placing colored squares (usually tiles) in a pattern so as to create a picture. mosaic(Noun) An individual composed of two or more cell lines of different genetic or chromosomal constitution, but from the same zygote.
A mosaic is a type of art in which small pieces of glass are arranged to make a larger picture. The same is true for a cell membrane. Although the individual components are small, they form a remarkable barrier when put together. Lesson Summary. A cell membrane is a fluid, flexible barrier on the outside of a cell that protects it. A cell membrane's phospholipids and proteins arranged in a bilayer give it semi-permeability, allowing some molecules into the cell but not all.