How do secretions from sweat glands kill microorganisms?
a. reducing the ph of the skin surface
b. drowning them
c. sticking them together

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

Which could be a pathway of food through an ecosystem