The diversity of cells in the human body is mentioned ... Students can draw diagrams showing how cells, tissues and organs are different but connected. The class could choose a specific organism ...

Behold, the human brain: Often compared to a computer, the body's most complex organ operates using a code of electrical and chemical signals. These signals transmit through wires, nodes and ...

The diversity of cells in the human body is mentioned ... Students can draw diagrams showing how cells, tissues and organs are different but connected. The class could choose a specific organism ...