Effects of changing carbon dioxide concentrations in the Earth's atmosphere Simulation Play

Effects of cigarette smoking on the human organism Slideshow Play

Effects of climate cooling and warming Whiteboard exercise Play

Effects of day length on the flowering of plants Simulation Play

Effects of deficiency and excess of proteins in the human Slideshow Play

Effects of deletion; inversion and duplication Animation Play

Effects of drugs; cigarettes and alcohol on the organism Whiteboard presentation Play

Effects of drugs; cigarettes and alcohol on the organism Class activity Play

Effects of energy Slideshow Play

Effects of environmental factors on individual traits Simulation Play

Effects of fisheries on the natural environment Slideshow Play

Effects of forces on stationary and moving objects Whiteboard exercise Play

Effects of growth hormone on metabolism Slideshow Play

Effects of HIV infection Animation Play

Effects of human activities on a rainforest biocoenosis Animation Play

Effects of human activity on ecosystems Whiteboard presentation Play

Effects of human activity on ecosystems Class activity Play

Effects of inherited mutations Animation Play

Effects of intensive agriculture on the natural environment Slideshow Play

Effects of intensive agriculture on wildlife Slideshow Play

Effects of introducing new species into a biocoenosis Animation Play

Effects of lifestyle on health Slideshow Play

Effects of macro-element deficiencies Student activity Play

Effects of macro-element deficiencies Simulation Play

Effects of mutagens Animation Play