Documents Endocrine System The making and sending of hormones.

Slide 1 Endocrine System The making and sending of hormones Slide 2 How it works Sends signals directly into blood stream (remember, takes less than a minute for blood to…

Documents THE CELL MEMBRANE 1. The cell membrane is selectively permeable; it controls which substances pass.....

Slide 1 Slide 2 THE CELL MEMBRANE 1. The cell membrane is selectively permeable; it controls which substances pass into and out of the cell. 2. The cell membrane is composed…

Documents THE CELL MEMBRANE

THE CELL MEMBRANE 1. The cell membrane is selectively permeable; it controls which substances pass into and out of the cell. 2. The cell membrane is composed primarily of…