+
PPT
Curated OER

Water Balance & Nitrogenous Waste Removal

For Teachers 9th
Examine the structures of the kidney and then define the functions of the specialised structures.  Every will find this powerpoint engaging, many of the images will present facts such as osmolarity of interstitial fluid and the negative...
+
PPT
Curated OER

Regulating the Internal Environment

For Teachers 11th - 12th
This presentation begins with the many problems multicellular organisms which rely on diffusion encounter. There are many diagrams of mammalian organ structures, and they are labelled with their relevant functions. This an excellent...