Benchmark 5C The Living Environment: Cells

Benchmark 5C
The Living Environment: Cells
Grades 6-8, page 112

All living things are composed of cells, from just one to many millions, whose details usually are visible only through a microscope. Different body tissues and organs are made up of different kinds of cells. The cells in similar tissues and organs in other animals are similar to those in human beings but differ somewhat from cells found in plants.

NSES Content Standard C
Life Science: Structure and function in living systems
Grades 5-8, page 156
All organisms are composed of cells--the fundamental unit of life. Most organisms are single cells; other organisms, including humans, are multicellular.

NSES Content Standard C
Life Science: Structure and function in living systems
Grades 5-8, page 156
Specialized cells perform specialized functions in multicellular organisms. Groups of specialized cells cooperate to form a tissue, such as a muscle. Different tissues are in turn grouped together to form larger functional units, called organs. Each type of cell, tissue, and organ has a distinct structure and set of functions that serve the organism as a whole.